Bộ 5 đề thi học sinh giỏi môn Tiếng Anh lớp 6 năm 2021 Trường THCS Gia Minh

BỘ 5 ĐỀ THI HỌC SINH GIỎI MÔN TIẾNG ANH LỚP 6 NĂM 2021

TRƯỜNG THCS GIA MINH

1. Đề số 1

Question I: Choose the best answer to fill in each blank.

1. My aunt speaks English very ................................

A. good

B. well

C. goodly

D. best

2. We have math on Tuesday, Thursday, and Friday; It means we have math .................. a week.

A. once

B. twice

C. three times

D. four times

3. Lan promises to ............................ her best in learning English.

A. try

B. make

C. work

D. learn

4. Learners don’t only learn the meaning ......................... the spelling and pronunciation of new words.

A. too

B. as well as

C. also

D. but also

5. The manager asked me ............................. for him outside his office.

A. wait

B. waiting

C. to wait

D. waited

6. She hasn’t written to me ........................................

A. already

B. yet

C. never

D. any longer

7. Would you be ................................ to hold the door open?

A. kind enough

B. too kind

C. as kind

D. so kind

8. Take the number 7 bus and get ......................... at Forest Road.

A. up

B. down

C. outside

D. off

9. They have never come ............................ such a beautiful village before.

A. off

B. along

C. at

D. across

10. Surely David’s not going to drive, .......................... he?

A. does

B. isn’t

C. is

D. will

Question II: Give the correct form of the words in the brackets.

1. He fell off the bike, but his ............................... were not serious. (injure)

2. She gave me a ............................... of the new house. (demonstrate)

3. The shop ............................. showed me a lot of new models. (assist)

4. You must read the following ............................... precautions carefully. (safe)

5. You shouldn’t talk about her character only through her .......................... (appear)

6. We are waiting for the .............................. of our uncle’s train. (arrive)

7. The increase in population has led to .................................... in many cities. (crowd)

8. We had a terrible trip because the weather was ............................. (please)

9. If you want to get more ................................, please contact Mr. Phong. (inform)

10. It’s a good restaurant; the food there is very ........................... (taste)

Question III: Choose the word whose underlined part is pronounced differently from that of the other words in each group

1. A. visit

B. resort

C. museum

D. restaurant

2. A. seat

B. great

C. please

D. beach

3. A. helped

B. wanted

C. sounded

D. suggested

4. A. hotel

B. photo

C. move

D. pagoda

5. A. city

B. center

C. country

D. cigarette

6. A. mind

B. climb

C. exciting

D. destination

7. A. sugar

B. sorry

C. seaside

D. summer

8. A. busy

B. why

C. history

D. family

9. A. page

B. village

C. luggage

D. heritage

10. A. what

B. which

C. where

D. who

Question IV: Give the correct form or tense of the verbs in the brackets.

1. My uncle (not/ be) …………… out of his house since he (buy) ……………… a color TV.

2. I don’t think I (go) ............................... out tonight. I (be) .......................... too tired.

3. John (wash) ............... his hands. He (just/ repair) ...................... the TV set.

4. Tell him (bring) .................................. his bike inside. If he (leave) ........................... it there, someone (steal) ....................................... it.

5. Where (you/ spend) ........................................ your summer holiday last year?

Question V: Finish the second sentence so that it has the same meaning as the first.

1. Keeping the environment clean is very important.

-> It’s  ....................................................................................................................................

2. They will show the time machine to the public when they finish it.

-> The time machine .............................................................................................................

3. He was delighted to receive his aunt’s letter.

-> He was delighted that his .................................................................................................

4. Old car tires are recycled to make shoes and sandals.

-> People ...............................................................................................................................

5. I’m very sad that I wasn’t accepted in that group.

-> I’m very sad not ................................................................................................................

6. Van keeps forgetting his homework.

-> Van is ...............................................................................................................................

7. I would like you to help me to put the chairs away.

-> Do you mind ...................................................................................................................?

8. Please don’t make any noise; I’m very tired.

-> I’d rather ...........................................................................................................................

9. Having a vacation abroad is very interesting.

-> It is ...................................................................................................................................

10. The water was so cold that the children couldn’t swim in it.

-> The water wasn’t ..............................................................................................................

Question VI: Read the following passage and answer the questions below.

A burn is an injury to the skin caused by exposure to fire, hot liquids or metals, chemicals, electricity or the sun’s ultraviolet rays. When someone gets a burn , it’s necessary to provide first - aid right away. First aid for burns involves removing the source of the burn as soon as possible. The burns should be cooled immediately with cold water. A clean, cold wet towel or dressing can be placed on less serious burns to ease pain and protect the burns from contaminating. If the burn is caused by chemicals, it should be bathed continuously with running water for at least 20 minutes to reduce the substance. Any powder should be carefully brushed off with gloved or protected hands before washing. Wet dressings should never be used for burns. Instead, the first - aid provider should gently apply dry, sterile dressing held in place by bandages and seek immediate medical attention.

* Question:

1. What can cause burns?

...............................................................................................................................................

2. When should the source of the burn be removed?

...............................................................................................................................................

3. Why should we place clean, cold wet towels on less serious burns?

...............................................................................................................................................

4. How long should the burn caused by chemicals be washed with water?

...............................................................................................................................................

5. What kind of dressings should the first - aid provider use?

...............................................................................................................................................

Question VII: Use the given words to make complete sentences.

1. Linh/ parents/ proud/ him/ because/ he/ always/ get/ good marks.

...............................................................................................................................................

2. We/ very interested/ play/ soccer/ when/ live/ countryside.

...............................................................................................................................................

3. I/ not talk/ uncle/ since/ he/ buy/ new house/ city center.

...............................................................................................................................................

4. The Browns/ buy/ lot/ food/ because/ they/ go/ have/ party.

...............................................................................................................................................

5. It/ only/ small car/ so/ there/ not/ enough room/ all/ us.

...............................................................................................................................................

Question VIII: Fill in each blank with the suitable word in the following passage.

I have just .............................. (1) a letter from my brother, Dave. He is in Australia. He has been there .................................. (2) six months. He is an engineer. He is ..............................(3) for a big farm and he has visited a great ........................... (4) of different places in Australia. He has just bought ............................. (5) Australian car and he has ................................... (6) to Alice Spring, a small town to the center of Australia. He .............................. (7) soon visit Darwin. From ............................... (8), he’ll fly to Perth. My brother has ..............................(9) been abroad before, so he ...................... (10)  this trip very exciting.

KEYS

Question I: (2,5 ms) - Mỗi từ chọn đúng cho: 0,25 đ

1. B

2. C

3. A

4. D

5. C

6. B

7. A

8. D

9. D

10. C

Question II: (2,5 ms) - Mỗi từ đúng cho: 0,25 đ.

1. injuries

2. demonstration

3. assistant

4. safety

5. appearance

6. arrival

7. overcrowding

8. unpleasant

9. information

10. tasty

Question III: (2,5 ms) - Mỗi từ chọn đúng cho: 0,25 đ.

1. D

2. B

3. A

4. C

5. C

6. D

7. A

8. B

9. A

10. D

Question IV: (2,5 ms) - Mỗi động từ chia đúng cho: 0,25 đ.

1. hasn’t been; bought

2. am going/ will go; am

3. is washing; has just repaired

4. to bring; leaves; will steal

5. did you spend

 

Question V: (2,5 ms) - Mỗi câu viết lại đúng cho: 0,25 đ.

1. It’s very important to keep the environment clean.

2. The time machine will be shown to the public when it is finished.

3. He was delighted that his aunt sent him a letter.

4. People recycle old car - tires to make shoes and sandals.

5. I’m very sad not to be accepted in that group.

6. Van is always forgetting his homework.

7. Do you mind helping me to put the chairs away?

8. I’d rather you didn’t make any noise; I’m very tired.

9. It’s very interesting to have a vacation abroad.

10. The water wasn’t warm/ hot enough for the children to swim (in).

Question VI: (2,5 ms) - Mỗi câu trả lời đúng cho: 0,5 đ.

1. Exposure to fire, hot liquids or metals, chemicals, electricity or the sun’s ultraviolet rays can cause burns.

2. It should be removed as soon as possible.

3. Because it helps ease pain and protect the burns from contaminating.

4. For at least twenty minutes.

5. He or she should use dry, sterile dressing held in place by bandages.

Question VII: (2,5 ms) - Mỗi câu viết đúng cho: 0, 5 đ.

1. Linh’s parents are very proud of him because he always gets good marks.

2. We were very interested in playing soccer when we lived in the countryside.

3. I haven’t talked to your/ my uncle since he bought a new house in the city center.

4. The Browns have bought a lot of food because they are going to have a party.

5. It is only a small car, so there isn’t enough room for all of us.

Question VIII: (2,5 ms) - Mỗi ô trống điền đúng cho: 0,25 đ.

1. received

2. for

3. working

4. number

5. an

6. gone

7. will

8. there

9. never

10. finds

2. Đề số 2

I/ Section one: vocabulary and structures

Question 1: Choose the best answers

1. Don’t be silly! That ...................................possibly be Rivaldo!

  a. mustn’t                            b . shouldn’t                          c. won’t                      d. can’t

2. No sooner had we started the game, .........................it began to rain.

  a. than                                  b. then                                    c. that                         d. and

3. I ..................................be interested in playing badminton as a child.

  a. could                                b. ought to                             c. might                      d. used to

4. They’ve told you time and time ............................. not to go out at night.

  a. to                                      b. over                                                c. again                       d. before

5. Sorry I’m late, but I..............................feed my little son before leaving home.

  a. needed                             b. must                                   c. had to                     d. was to       

6. Smith writes very quickly. He’s .........................finished his essay.

  a. already                             b. been                                   c. for                           d. yet

7. What are you going to do? - I don’t know. I haven’t made................my mind yet.

  a. on                                     b. at                                         c. in                             d. up

8. I’ve ..............................to Paris. I went there in March.

  a. been                                 b. gone                                   c. just                          d. yet

9. This is the first ..................... I’ve ever lived far from home.

  a. already                             b. since                                   c. that                         d. time

10. What did the girl say ........................?

  a. at   you                             b. for you                               c. you                         d. to you?

11. Phong rang his friend in Nha Trang yesterday, and he said it ..............raining there.

  a. was                                   b. is                                         c. should be               d. to be

12. The last time I saw Khang, he looked very relaxed. He explained that he’d been on holiday the ........................week.

  a. earlier                              b. following                           c. next                        d. previous

13. We wonder ........................the tickets are on sales yet.

  a. what                                 b. when                                  c. whether                 d. where

14. When I rang Oanh some time last week, she said she was busy.................day.

  a. this                                   b. that                                     c. then                        d. the

15. Which word has the underlined part pronounced differently from the others?

  a. just                                   b. sun                                      c. put                          d. bucket

16. Which word has the underlined part pronounced differently from the others?

  a. instead                             b. head                                   c. heap                        d. dead

17. Which word has a different stress in the group?

  a. amount                             b. inventor                             c. garbage                  d. resource

18. This film must be new. We’ve ........................ seen it before.

  a. ever                                  b. never                                  c. since                       d. yet

19. He hates.......................................to do something by others.

  a. to be asked                      b. asking                                c. being asked           d. to ask

20. Let’s go camping in the mountain, ........................?

  a. do we                               b. can we                                c. will we                   d. shall we

Question 2: Supply the correct forms of the word in parentheses.

1. Phuong Linh arranged flowers the most .......................(attract) in the contest.

2. It is a contest in which ....................(participate) have to read two poems in English.

3. .......................(environment) are concerned about the use of dynamite to catch fish.

4. Years later, she passed me in the street without even a small sign of .......(recognize).

5. Nam put ................(press) on that towel to stop the bleeding.

6. After many years of ............(fail), Edison finally succeeded in inventing the light bulb.

7. We use first-aid in order to ease the victim’s pain and ......................(anxious).

8. She felt ....................(relief) after she passed the exam.

9. You’ll meet the tour guide on your ..................(arrive) at the hotel.

10. We can take buses or trains to Northern ......................(destine) of Nha Trang.

11. Sapa is considered the most beautiful .......(mountain) resort in the north of Viet Nam.

12. It’s now high time you knew how to dress and ....................(dress) yourself.

13. We are having a good time here. People on the island are very friendly and ...........(hospitality).

14. The police are interested in the sudden ............(appear) of the valuable painting.

15. I wrote .............(end) letters of application but I got no reply.

16. A fairy appeared and ...................................... ( MAGIC )changed her old clothes   

17. The tiger wanted to see the farmer’s .................................. ( WISE )

18. In that story, the prince got ........................( MARRY )to a poor girl       

19.  Let me get an .................................... ( APPLY ) form and I can fill out     

20. He was ............................... ( FOOL ) to say that English is helpless       

KEYS

I/ Section one: vocabulary and structures

Question 1: Choose the best answers (20 pts)

1D

2A

3D

4C

5C

6A

7D

8A

9D

10D

11A

12D

13C

14B

15C

16C

17C

18B

19C

20D

Question 2: Supply the correct forms of the word in parentheses. (20 pts)

1. attractively 2. participants           3 . environmentalists           4. recognition   5. pressure

6. failure        7. anxiety                   8. relieved                 9. arrival        10. destinations                   

11. mountainous  12. undress     13. hospitable               14. disappearance   15. endless     

16. magically            17. wisdom      18. married              19. application            20. foolish

II/ Section two: reading comprehension

Question 1: Read these passages and match the each passage to its title. There is ONE title you neednt use(10 pts)

1E/ 2C/3B /4F /5A

Question 2: Read the text and choose the best answer to fill in each gap.(10 pts)

1A/ 2D/ 3C/4A/5B/ 6C/ 7D/ 8D/ 9A/ 10C

Question 3: Find and correct one mistake in each line of the passage below.(10 pts)

1. interested thành  interesting       2him  thành his                     3. gone  thành went 

4.among thành  between                 5. had  thành was                  6. bought thành buy

7. wetter thành wettest                     8. since thành for                   9. did  thành  done

10. any thành some

III/ section three: writing

Question 1: Rearrange the words to make meaningful sentences.(15 pts)

1. How many tons of rice were exported to Japan last year?

2. The boys in the volunteer group are  planting trees on the hill.

3. The heavy rain prevented us from playing soccer.

4. If I asked him some money, he could lend me then.

5. An Englishman had someone design a card to send Christmas greetings to his friends.

6. They are living with their children at 186 Le Lai Street in An Giang.

7. Their uncle spent most of his time practicing the violin in the music room.

8. Which sentence tells us that she is more beautiful than her sister?

9. Unlike his old friends, he is very impolite.

10. Kenny is going to visit his fatherland with his family next month.

11. He and his colleagues don’t have to go to work at the weekend.

12. She wanted to know if there was a museum near here.

13. They are going to hold a party at their house tomorrow.

14. The boys are (aren’t)going to the school canteen, aren’t (are)they?

15. If you don’t go to bed soon, you’ll be late for the meeting.

Question 2: Rewrite sentences as directed so that it has the same meaning as the sentence given.(15pts)

1. It is interesting that he thought of making toys from used paper.

2. It’s over twenty years since he last came back to his home village.

3. I have never such a strange film before.

4. I’d rather you didn’t interrupt me while I am speaking.

5. If you don’t get up now, you’ll be late for school.

6. We haven’t met each other for ten years.

7. It’s difficult to find accommodation in Da Lat at busy time.

8. Tennis used to be an indoor game.

9. My father likes living in the countryside better than living in the city.

10. Lan is the most intelligent (student) in my class.

11. Is this the first time you have played a computer game?

12. The Statue of Liberty was presented to the United State by the France in 1876.

13. The water wasn’t warm enough for the children to swim in.

14. It’s ages since he last chatted with his classmates through the Internet.

15. Experiments on animals should be stopped.

3. Đề số 3

Question 1: Choose the word in each group that has underlined, italic part pronounced differently from the rest.

1. A. set                          B. between                C. get                          D. met

2. A. started                   B. needed                  C. protected              D. stopped

3. A. ground                  B. should                   C. about                     D. amount

4. A. durian                   B. cucumber              C. painful                  D. duty

5. A. worked                  B. hoped                    C. forced                    D. sailed

6. A. improve                B. coveralls               C. gloves                    D. stomach

Question 2: Complete the sentences with the most suitable words:

1. They don’t drink coffee. _______ do their friends.

A. either                     B. neither                   C. too                         D. so

2. She hates fish and_______ do I.

A. either                     B. neither                   C. too                         D. so

3. You can buy pineapples and bananas at the_______ stall

A. meat                      B. fruit                       C. food                       D. chicken

4. I_______ like some spinach and cucumbers.

A. hard                       B. did                         C. would                    D, do

5. What_______ the weather like there?

A. does                       B. did                         C. was                        D. will

6. I like_______ badminton.

A. playing                  B. making                  C. working                 D. acting

7. Harry is working at a bank_______.

A. at the moment      B. a year ago             C. for a year              D. in a moment

8. Who is_______ , Mary or Cathy?

A. tall                         B. taller                      C. tallest                    D. more taller

9. The Robinsons always go to Vietnam_______ plane.

A. in                           B. on                           C. with                       D. by

10. _______ noodle for breakfast yesterday?

A. Did you eat          B. Were you eat        C. Did you ate           D. Do you ate

11. It took us two hours_______ to Hanoi.

A. drive                      B. driving                  C. to drive                 D. drove

12. Hoa and her brother_______ at home last Sunday.

A. didn’t are              B. wasn’t                   C. weren’t                  D. not were

13. Were you absent_______ school last Monday?

A. from                      B. at                            C. in                            D. on

14. You_______ take a taxi. It is raining out side.

A. would better         B. must                       C. have to                  D. had better

15. She never touches_______ food.

A. healthy                  B. unhealthy             C. good                      D. delicious

16. _______ up late. It is harmful to your heath.

A. Don’t stay             B. Not stay                C. Not to stay            D. Stay

17. Please show me_______ this machine works.

A. what                      B. how                        C. which                    D. when

18. When I saw her, I thought she looked_______.

A. happy                    B. happily                  C. to be happy          D. being happy

19. Shall we go out tonight?

A. Yes, we go            B. Yes, I can             C. Yes, let’s              D. Yes, we are

20. They are good student. They study very_______.

A. better                     B. good                      C. goodly                   D. well

KEYS

Question 2 : 1B         2D       3C       4C       5C       6A       7A       8B       9D       10A

                     11C       12C     13A     14D     15A     16A     17B     18A     19C     20D

Question 3 : 1T         2F        3T       4F        5T

Question 4 : 1B         2A       3C       4A       5D

Question 5 : 1C         2C       3B       4A

4. Đề số 4

Question 1: Choose the word in each group that has underlined, italic part pronounced differently.

1. A. album                    B. use                         C. amusement           D. united

2. A. minority                B. gramophone         C. robbery                 D. monument

3. A. attraction              B. battle                     C. veteran                  D. character

4. A. invention              B. depend                  C. resort                     D. defeat

5. A. hoped                    B. looked                   C. opened                  D. washed

Question 2: Which word is odd one out?

1. A. Vientiane              B. Jakarta                  C. Beijing                  D. Ho Chi Minh City

2. A. began                    B. played                   C. knew                      D. sent

3. A. papaya                  B. mango                   C. durian                    D. potato

4. A. skillfully               B. badly                     C. friendly                 D. safely

Question 3: Complete the sentences with the most suitable words:

1. Would you like to play tennis, Nam?

A. I’d like to, but I can’t     B. Yes, I’d like to     C. No, thanks D. I’d like to go

2. I have some home work. I________ finish it before I play table tennis.

A. should to               B. need to                  C. ought                     D. want

3. Can I borrow your fishing rob, Minh?

A. No, I can’t            B. I’m sorry Nam I’m using  C. I’d love to          D. Yes, please

4. Traffic police never let you________ without a ticket

A. go                           B. going                     C. to go                      D. gone

5. London is the________ of England.

A. capital                   B. the capital             C. a capital                D. one capital

6. ________ do you go shopping? – Every week.

A. How far                B. What time             C. How often             D. How

7. ________ people go to the movies now than ten years ago.

A. Fewer                    B. Few                        C. Less                       D. Lesser

8. ________ was in. The room was empty.

A. Anybody              B. Somebody             C. Everybody            D. Nobody

9. Would you tell me where________ born.

A. you were               B. were you               C. you was                 D. was you

10. Tom hates watching T.V. ________ does Peter.

A. So                          B. Too                        C. Neither                  D. Either

11. Hoa prefers colorful dances in Thailand________ shadow puppet shows in Indonesia.

A. to                           B. than                       C. as                           D. for

12. ________ seeing  beautiful sites, visitors can enjoy traditional food.

A. Apart         B. Together                           C. According to        D. As well as

13. People in Asia often drink________

A. some tea               B. the tea                   C. tea                          D. many tea

14. Uncle Ho was born________.

A. At 1890, in May B. on May, 1890       C. 1890, at May        D. in May,1890

15. Some scientists spend most of their lives________ at rocks.

A. looking                 B. look                       C. to look                   D. looked

KEYS

Question 1: 1.25 p                1A      2B       3C       4A       5C

Question 2: 1.0 p                 1C       2B       3D       4C      

Question 3: 3.75 p               1B       2B       3B       4A       5B      

                                            6C       7A       8D       9A       10A

                                             11A     12D     13C     14D     15A

Question 4: 1.5 p                  1A       2A       3C       4B       5C       6C

Question 5: 2.5 p                  1B       2A       3B       4B       5B      

                                            6A       7A       8B       9A       10B

5. Đề số 5

I. Choose the best answer by circling A, B, C or D

1. Jack is……. His jokes often make his friends laugh a lot.

A. generous  B. humorous             C.easy-going             D. unusual

2. I’m sorry. I’m not………to help you lift the table.

A. enough strong                  B. too strong             C. strong enough     D. enough strength.

3. We…….in our present house for 5 years.

A. live            B. have lived            C. are living              D. lived.

4. We used to wash clothes by hand. Now we have a…….

A. washing machine            B. dishwasher           C. hair dryer              D. steamer.

5. It took me a long time to get used……… glasses.

A. to wear      B. to wearing            C. wear          D. wore.

6.The wedding party…………at the Rex Hotel.

A. is                B. is being     C. will be       D. is going to be

7."Don’t shout", I said to Jim.

A. I told Jim don't shout                  B. I told to Jim not to shout

C. I told Jim not to shout                 D. I said to Jim don't shout.

8.The longest fish in the contest was eighteen inches long".

"It………by Thelma Rivers".

A. was catching        B. caught       C. was caught            D. catch

9.She went to market without………. anything.

A. buy B. to buy        C. bought       D. buying

10.Since we have to be there by 8.30, we………. take a taxi.

A. had better B. may            C. ought         D. are able to

KEYS

I.

1. B     2.C      3.B      4.A      5.B      6.C      7.C      8.C      9.D      10.A

II.

1.are watching           2.have known            3.arrived        4.have begun   5.to cook

6.not to make            7.playing        8.to give         9.is going to rain       10.to live

III.

1.application 2.airmail        3.orphanage     4.sociable      5.steamer.

6.beautifully     7. Careless 8.traditional       9.encourages.   10.children

IV.

1.He is strong enough to carry that table.

2.Alexader GrahamBel was the inventor of the telephone.

3.Did you go to see the movie Dream City last night?

4.The front yard isn’t large enough to play soccer in.

5.Miss Johson told me to read books regularly.

6.My sister asked me not to stay up late.

7.I haven’t spoken to her for 3 years.

8.Tam used to type faster than she does now/ she can.

9.Minh has collected stamps since 2000/ for 8 years.

10.His car doesn’t run as fast as a race car.

V.

1. Nam spends most of his free time playing soccer.

2. When we were children, we used to listen to grandma’s old folktales after dinner.

3. Can you tell me the best way to learn new words?

4. I write down all the new words in a small notebook.

5. They are going to visit their home village at the weekend.

6.She had to do housework all day after her mother died.

7.I have just had a wonderful holiday with my cousins in Ha noi.

8.Lan likes cooking meals but she doesn’t like doing the washing up.

9. My brother is very good at repairing household appliances.

10. We sometimes have to go to school very early to do  (our) class duties.

VI.

1.more            2.for                3.there             4.so     5.can

6.in     7.each             8.has               9.be     10.are

VII.

1.c       2.a       3.d       4.c       5.b       6.a       7.d       8.d       9.c       10.d

VIII.

1. for we-> for us.

2. enough old-> old enough.

3. is he doing -> he is doing.

4. aren’t-> isn’t.

5. I’m->  I

6. don’t lean-> not to lean.

7. loves-> love.

8. to work-> working.

9. for-> since.

10.is-> is not.

IX

1.a;      2.b;     3.d       4.c       5.a      

6.d       7.d       8.b       9.a       10.b   

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Trên đây là một phần trích đoạn nội dung Bộ 5 đề thi học sinh giỏi môn Tiếng Anh lớp 6 năm 2021 Trường THCS Gia Minh. Để xem thêm nhiều tài liệu tham khảo hữu ích khác các em chọn chức năng xem online hoặc đăng nhập vào trang Chúng tôi để tải tài liệu về máy tính.

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