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3. Circle. the best option A, B, C, or D to. complete the following sentences. 1. People should respect and by to protect the environment. Otherwise, A. the ecology will become unbalanced B. the ecology would become unbalanced C. the ecology become unbalanced D. the ecology became unbalanced 2. It’s necessary that A. we may to protect the environment B. should protect the environment C. we should protect the environment D. we should protected the environment 3. The air A. was...
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3. Circle. the best option A, B, C, or D to. complete the following sentences.

1. People should respect and by to protect the environment. Otherwise,

A. the ecology will become unbalanced

B. the ecology would become unbalanced

C. the ecology become unbalanced

D. the ecology became unbalanced

2. It’s necessary that

A. we may to protect the environment

B. should protect the environment

C. we should protect the environment

D. we should protected the environment

3. The air

A. was also pollute

B. are also pollute

C. is also polluted

D. is also pollution

4. Many people do not want to live in big city because

A. big cities is very busy

B. big cities are very busy, noisy and expensive

C. big cities will be very noisy

D. big cities are very clean

5. Remember

A. to turn the light before leaving the room

B. to turn off light before leaving the room

C. turn off the light before leaving the room

D. to turn off the light before leaving the room

1
27 tháng 2 2020

1.A

2.C

3.C

4.B

5.B

12 tháng 4 2019

1.A

2.C

3.D

Circle the best option A, B, C, or D to complete the following sentences: 1. People should respect and try to protect the environment. Otherwise, ______ A. the ecology will become unbalanced B. the ecology would become unbalanded C. the ecology become unbalanced D. the ecology became unbalanced 2. It’s necessary that ______ A. we may to protect the enviroment B. should protect the enviroment C. we should protect the enviroment D. we should protected the enviroment 3. The air...
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Circle the best option A, B, C, or D to complete the following sentences: 1. People should respect and try to protect the environment. Otherwise, ______ A. the ecology will become unbalanced B. the ecology would become unbalanded C. the ecology become unbalanced D. the ecology became unbalanced 2. It’s necessary that ______ A. we may to protect the enviroment B. should protect the enviroment C. we should protect the enviroment D. we should protected the enviroment 3. The air ______ A. was also pollute B. are also pollute C. is also pollute D. is also pollution 4. Many people do not want to live in big city because _____ A. big cities is very busy B. big cities are very busy, noisy and expensive C. big cities will be very noisy D. big cities are very clean 5. Remember ______ A. to turn the light before leaving the room B. to turn off light before leaving the room C. turn off light before leaving the room D. to turn off the light before leaving the room
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III. Circle the best option  A, B, C or D  to complete the following sentences: 1. Travelling by air is _________ than travelling by bus.       A. fast                   B. faster                                  C. more fast     D. fastter2. Duy __________ to school every day.       A. cycle                           B. cycles                       C. is cycling     D. is cycles3. My friend has a sister, but she ________ a brother.A. don’t have                   B. not has                   ...
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III. Circle the best option  A, B, C or D  to complete the following sentences:

1. Travelling by air is _________ than travelling by bus.

       A. fast                   B. faster                                  C. more fast     D. fastter

2. Duy __________ to school every day.

       A. cycle                           B. cycles                       C. is cycling     D. is cycles

3. My friend has a sister, but she ________ a brother.

A. don’t have                   B. not has                    C. doesn’t have           D. isn’t have

4. My ________ house is in Ha Noi.

       A. grandmother                B. grandmothers         C. grandmother’s                    D. grandmothers’s

5. Where is ________ bike?

       A. Minh’s             B. Minhs’                    C. Minhs’s                   D. Minhs

6. The dog _______ on the chair.

       A. be                    B. is                              C. am                          D. are

7. Doing homework is ________ than playing video games.

       A. more important            B. important                C. importanter     D. much important

8. Is a snake ________ than a dog?

       A. dangerous                    B. dangerouser                        C. more dangerous      D. much dangerous

9. The square in Hanoi is _______ than the square in Hoi An.

       A. biger                B. more big                C. bigger                      D. big

10.   Let’s _________  to the library this afternoon.

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

11. – “Where’s Lisa?”

       - She’s ___________ Mum in the kitchen.

     A. helping         B. helps                       C. is helping               D. help

12. _____ they ______ books in the library? – Yes, they are.

      A.  Is/ reading             B.  Are/reading     C.  Am/reading                  D. Do/read

13.   It’s ________ in the north of Vietnam than in the south.

      A. cold                        B.  coldder                  C. more cold   D.  colder

14. Look! The girls are _________ rope in the playground.

      A.  dancing                 B.  watching                C. skipping                  D. playing

15.She’s a good student. She _________ does her homework on time.

            A. never                                  B. rarely                      C. usually                    D.  sometimes

16. There is _______ big cave in this area.

            A. a                             B.  an              C.  some                       D. a few

17. There are some pictures ________ the wall in my bedroom.

            A. on                                         B.  in             C.  under                     D.  in front of

18. __________ is a thing which helps you to find directions.

     A. A backpack                         B.  A compass             C. A ruler                    D.  A sleeping bag

19. We often use a __________ in a maths class.

      A. bike                        B.  uniform                  C.  compass                 D.  picture book

20. We _______ pick flowers in the school garden.

5
12 tháng 12 2021

bài này mik làm r nhưng sợ sai à

lên các bn xem lại hộ mik để mik kiểm tra bài lại nha

12 tháng 12 2021

III. Circle the best option  A, B, C or D  to complete the following sentences:

1. Travelling by air is _________ than travelling by bus.

       A. fast                   B. faster                                  C. more fast     D. fastter

2. Duy __________ to school every day.

       A. cycle                           B. cycles                       C. is cycling     D. is cycles

3. My friend has a sister, but she ________ a brother.

A. don’t have                   B. not has                    C. doesn’t have           D. isn’t have

4. My ________ house is in Ha Noi.

       A. grandmother                B. grandmothers         C. grandmother’s                    D. grandmothers’s

5. Where is ________ bike?

       A. Minh’s             B. Minhs’                    C. Minhs’s                   D. Minhs

6. The dog _______ on the chair.

       A. be                    B. is                              C. am                          D. are

7. Doing homework is ________ than playing video games.

       A. more important            B. important                C. importanter     D. much important

8. Is a snake ________ than a dog?

       A. dangerous                    B. dangerouser                        C. more dangerous      D. much dangerous

9. The square in Hanoi is _______ than the square in Hoi An.

       A. biger                B. more big                C. bigger                      D. big

10.   Let’s _________  to the library this afternoon.

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

11. – “Where’s Lisa?”

       - She’s ___________ Mum in the kitchen.

     A. helping         B. helps                       C. is helping               D. help

12. _____ they ______ books in the library? – Yes, they are.

      A.  Is/ reading             B.  Are/reading     C.  Am/reading                  D. Do/read

13.   It’s ________ in the north of Vietnam than in the south.

      A. cold                        B.  coldder                  C. more cold   D.  colder

14. Look! The girls are _________ rope in the playground.

      A.  dancing                 B.  watching                C. skipping                  D. playing

15.She’s a good student. She _________ does her homework on time.

            A. never                                  B. rarely                      C. usually                    D.  sometimes

16. There is _______ big cave in this area.

            A. a                             B.  an              C.  some                       D. a few

17. There are some pictures ________ the wall in my bedroom.

            A. on                                         B.  in             C.  under                     D.  in front of

18. __________ is a thing which helps you to find directions.

     A. A backpack                         B.  A compass             C. A ruler                    D.  A sleeping bag

19. We often use a __________ in a maths class.

      A. bike                        B.  uniform                  C.  compass                 D.  picture book

V. Choose the best answer to complete each of the following sentences. Answer by writing down the corresponding letter A, B, C or D on your answer sheet.21. Let’s do something to protect the environment, ________ we?A. needn’t                               B. must                        C. shall                        D. will22. By 1820, there were over sixty steamboats on the Mississippi river,_______were quite luxurious.A. which many                        B. many of them         C. many of...
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V. Choose the best answer to complete each of the following sentences. Answer by writing down the corresponding letter A, B, C or D on your answer sheet.

21. Let’s do something to protect the environment, ________ we?

A. needn’t                               B. must                        C. shall                        D. will

22. By 1820, there were over sixty steamboats on the Mississippi river,_______were quite luxurious.

A. which many                        B. many of them         C. many of which       D. many that

23.  Not only _______ to speak to him, but she also vowed never to see him again.

A. she refused                         B. did she refuse         C. she did refuse         D. when she refused

24. I had to borrow my mother’s bike because mine was __________ .

A. out of work                         B. out of order             C. off chance              D. off work

25. We ________ on the beach now if we hadn’t missed the plane.

A. might have laid                  B. would lie                 C. could be lying        D. would have laid

26. People ________ how to dye their clothes even before they knew how to read and write.

A. had known                          B. have known            C. knew                      D. are known

27. - “ How lovely your pets are !” – “ ________”

A. I love them, too.                                                     B. Thank you, it is nice of you to say so.

C. Can you say that again       .                                   D. Really? They are.

28. It is interesting to take __________ a new hobby such as collecting stamps or going fishing.

A. over                                                B. on                           C. in                            D. up

29. She  ________ in order to send her children to school.

A. cut corners                                                              B. worked her fingers to the bone

C. made a meal of it                                                   D. called it a day

30.  This used to be a rural area but it has become  _________

A. industrialized                     B. industry                  C. industrialization     D. industrialize 

31. Tim: “Would you mind lending me your dictionary?”    Paul: “_______________________.”

A. Yes, let’s                            B. Great                      C. No, of course not   D. Yes. Here you are

32. It’s no use___________ a language if you don’t try to use it.

A. to learn                               B. learning                   C. learned                   D. learn

33.The college got some money by selling one of its _______ old pictures.

A. helpful                                B. usual                       C. valuable                  D. useful

34. Mr. Man was given a medal in _______ of his service to his country.

A. gratitude                             B. knowledge              C. recognition             D. response

35. You can’t tell what someone is like just from their ______.

A. character                             B. looking                   C. personality             D. appearance

2
19 tháng 8 2021

1 C

2 C

3 B

4 B

5 B

6 A

7 B

8 D

9 B

10 A

11 C

12 B

13 C

14 C

15 D

19 tháng 8 2021

21 C

22 A

23 A

24 B

25 C

26 A

27 B

28 C

29 C

30 B

31 D

32 A

33 C

34 B

35 D

Choose the best option among A, B, C, or D to complete each of the following sentences.1. Tell me ___you want and I will try to help you.  A. that                                     B. what                                    C. who                        D. which2. The bed ___I slept in was too soft.                     A. whose                               B. which                                  C. what                       D. who3. Nora is the only person ____understands me.   A. which ...
Đọc tiếp

Choose the best option among A, B, C, or D to complete each of the following sentences.

1. Tell me ___you want and I will try to help you.  

A. that                                     B. what                                    C. who                        D. which

2. The bed ___I slept in was too soft.                   

  A. whose                               B. which                                  C. what                       D. who

3. Nora is the only person ____understands me. 

  A. which                               B. who                                    C. what                       D. whose

4. The hotel ___we stayed was not clean.              

A. who                                    B. that                                     C. where                        D. when

5. What was the name of the people ___car had broken down.    

 A. which                                B. who                                     C. whom                     D. whose

6. I recently went back to the town _____I was born.            

 A. what                                  B. where                                  C. who                        D. which

7. I don’t agree with ____ you have just said.           

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

8. Do you know the girl ___Tom is talking to?   

A. whom                                             B. what                                   C. which                      D. whose

9. I gave her all the money ____ I had.              

 A. that                                    B. what                                   C. when                       D. whose

10.The stories ___Tom tells are usually very funny.   

 A. when                                 B. that                                     C. where                      D. who

11. I met the woman ___can speak 6 languages.        

 A. who                                   B. when                                   C. which                      D. whom

12. The periodic table contains all the elements, ________ has a particular atomic weight and atomic number.

A. which of each                     B. each of which                     C. which each             D. each

 

2
26 tháng 2 2021

Choose the best option among A, B, C, or D to complete each of the following sentences.

1. Tell me ___you want and I will try to help you.  

A. that                                     B. what                                    C. who                        D. which

2. The bed ___I slept in was too soft.                   

  A. whose                               B. which                                  C. what                       D. who

3. Nora is the only person ____understands me. 

  A. which                               B. who                                    C. what                       D. whose

4. The hotel ___we stayed was not clean.              

A. who                                    B. that                                     C. where                        D. when

5. What was the name of the people ___car had broken down.    

 A. which                                B. who                                     C. whom                     D. whose

6. I recently went back to the town _____I was born.            

 A. what                                  B. where                                  C. who                        D. which

7. I don’t agree with ____ you have just said.           

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

8. Do you know the girl ___Tom is talking to?   

A. whom                                             B. what                                   C. which                      D. whose

9. I gave her all the money ____ I had.              

 A. that                                    B. what                                   C. when                       D. whose

10.The stories ___Tom tells are usually very funny.   

 A. when                                 B. that                                     C. where                      D. who

11. I met the woman ___can speak 6 languages.        

 A. who                                   B. when                                   C. which                      D. whom

12. The periodic table contains all the elements, ________ has a particular atomic weight and atomic number.

A. which of each                     B. each of which                     C. which each             D. each

28 tháng 2 2021

1B

2B

3B

4C

5D

6B

7A

8A

9A

10B

11A

12B

I. Circle the best option A, B, C or D to complete the following sentences. 1. Children are ______ of seeing the dentist.            A. afraid                     B. interested              C. worried                  D. keen2. Now Hoa is used  ______ the busy roads in the city.            A. to cross                 B. crossing                 C. for crossing          D. to crossing3. No one can do it well and ______.            A. so can she             B. neither can she     C. she can’t,...
Đọc tiếp

I. Circle the best option A, B, C or D to complete the following sentences.

1. Children are ______ of seeing the dentist.

            A. afraid                     B. interested              C. worried                  D. keen

2. Now Hoa is used  ______ the busy roads in the city.

            A. to cross                 B. crossing                 C. for crossing          D. to crossing

3. No one can do it well and ______.

            A. so can she             B. neither can she     C. she can’t, too        D. she can, either

4. The nurse will ______ your height again.

            A. weigh                     B. take                        C. measure                 D. do

5. Don't forget ______ your hands before meals.

            A. wash                    B. to wash                    C. washing                 D. to washing

6. You should add some salt ______ the dish.   

            A. with                       B. for                          C. in                            D. to               

7. Do you think cooking is also a useful ______?

            A. hobby                    B. work                      C. time                        D. meal                      

8. Mr. Long has ______ days off than Mr. Tuan.

            A. many                     B. less                         C. fewer                     D. much

9. There are many ______ why it is important to have a hobby.

A. answers                 B. reasons                  C. details                    D. facts

10. Will you ______ making models in the future?

A. pick up                  B. look for                 C. take up                  D. find

11. I love my sister’s paintings because she is very ______ in using colours.

A. careless                 B. care                        C. creative                 D. imagine

12. A hobby helps you to connect with ______ people.

A. other                      B. others                    C. another                  D. the other

13. I join a photography club, and all the members love ______ a lot of beautiful photos.

A. take                        B. taking                    C. make                      D. making

14. What does your father do ______ his free time?

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

15. You can share your stamps ______ other collectors ______ a stamp club.

A. to – at                    B. to – in                    C. with – at                D. with – in

1
6 tháng 10 2021

1 A

2 D

3 B

4 C

5 B

6 D

7 A

8 C

9 B

10 C

11 C

12 A

13 B

14 A

15 A

III. Choose the best answer A, B, C or D to complete the sentences:1. What can be done to protect people from __________ disasters?A. environment                 B. environmental          C. environmentally       D. environmentalist2. All our English teachers are __________ speakers.A. native                            B. original                    C. foreign                      D. foreigns3. The heavy rain has caused __________ in many parts of the country.A. storms                          ...
Đọc tiếp

III. Choose the best answer A, B, C or D to complete the sentences:

1. What can be done to protect people from __________ disasters?

A. environment                 B. environmental          C. environmentally       D. environmentalist

2. All our English teachers are __________ speakers.

A. native                            B. original                    C. foreign                      D. foreigns

3. The heavy rain has caused __________ in many parts of the country.

A. storms                           B. floods                       C. drought                     D. flood

4. Science is used in all corners of the world for the __________ of people.

A. interest                          B. need                          C. profits                       D. benefit

5. The new invention could have a wide range of __________ in industry.

A. applications                   B. concerns                   C. goodness                   D. advance

6. Too much carbon dioxide in the air can be __________ for humans to breathe.

A. poisonous                      B. unfriendly                 C. healthy                      D. poison

7. Teenagers often use abbreviations when ___________.

A. texting                          B. video conferencing      C. sending letters          D. talking

8. The ___________ in technology allow astronomers to know more about outer space.

A. developments               B. science                         C. exploration                D. discovery

9. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed____.

A. oil                                  B. solar panels                  C. electricity                  D. coal burning

10. Mary wondered if Neptune __________ larger than Saturn.

A. was                                B. being                            C. is                                D. be

4
18 tháng 5 2021

III. Choose the best answer A, B, C or D to complete the sentences:

1. What can be done to protect people from __________ disasters?

A. environment                 B. environmental          C. environmentally       D. environmentalist

2. All our English teachers are __________ speakers.

A. native                            B. original                    C. foreign                      D. foreigns

3. The heavy rain has caused __________ in many parts of the country.

A. storms                           B. floods                       C. drought                     D. flood

4. Science is used in all corners of the world for the __________ of people.

A. interest                          B. need                          C. profits                       D. benefit

5. The new invention could have a wide range of __________ in industry.

A. applications                   B. concerns                   C. goodness                   D. advance

6. Too much carbon dioxide in the air can be __________ for humans to breathe.

A. poisonous                      B. unfriendly                 C. healthy                      D. poison

7. Teenagers often use abbreviations when ___________.

A. texting                          B. video conferencing      C. sending letters          D. talking

8. The ___________ in technology allow astronomers to know more about outer space.

A. developments               B. science                         C. exploration                D. discovery

9. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed____.

A. oil                                  B. solar panels                  C. electricity                  D. coal burning

10. Mary wondered if Neptune __________ larger than Saturn.

A. was                                B. being                            C. is                                D. be

18 tháng 5 2021

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

III. Choose the best answer A, B, C or D to complete the sentences:1. What can be done to protect people from __________ disasters?A. environment                 B. environmental          C. environmentally       D. environmentalist2. All our English teachers are __________ speakers.A. native                            B. original                    C. foreign                      D. foreigns3. The heavy rain has caused __________ in many parts of the country.A. storms...
Đọc tiếp

III. Choose the best answer A, B, C or D to complete the sentences:

1. What can be done to protect people from __________ disasters?

A. environment                 B. environmental          C. environmentally       D. environmentalist

2. All our English teachers are __________ speakers.

A. native                            B. original                    C. foreign                      D. foreigns

3. The heavy rain has caused __________ in many parts of the country.

A. storms                           B. floods                       C. drought                     D. flood

4. Science is used in all corners of the world for the __________ of people.

A. interest                          B. need                          C. profits                       D. benefit

5. The new invention could have a wide range of __________ in industry.

A. applications                   B. concerns                   C. goodness                   D. advance

6. Too much carbon dioxide in the air can be __________ for humans to breathe.

A. poisonous                      B. unfriendly                 C. healthy                      D. poison

7. Teenagers often use abbreviations when ___________.

A. texting                          B. video conferencing      C. sending letters          D. talking

8. The ___________ in technology allow astronomers to know more about outer space.

A. developments               B. science                         C. exploration                D. discovery

9. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed____.

A. oil                                  B. solar panels                  C. electricity                  D. coal burning

10. Mary wondered if Neptune __________ larger than Saturn.

A. was                                B. being                            C. is                                D. be

4
8 tháng 2 2022

III. Choose the best answer A, B, C or D to complete the sentences:

1. What can be done to protect people from __________ disasters?

A. environment                 B. environmental          C. environmentally       D. environmentalist

2. All our English teachers are __________ speakers.

A. native                            B. original                    C. foreign                      D. foreigns

3. The heavy rain has caused __________ in many parts of the country.

A. storms                           B. floods                       C. drought                     D. flood

4. Science is used in all corners of the world for the __________ of people.

A. interest                          B. need                          C. profits                       D. benefit

5. The new invention could have a wide range of __________ in industry.

A. applications                   B. concerns                   C. goodness                   D. advance

6. Too much carbon dioxide in the air can be __________ for humans to breathe.

A. poisonous                      B. unfriendly                 C. healthy                      D. poison

7. Teenagers often use abbreviations when ___________.

A. texting                          B. video conferencing      C. sending letters          D. talking

8. The ___________ in technology allow astronomers to know more about outer space.

A. developments               B. science                         C. exploration                D. discovery

9. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed____.

A. oil                                  B. solar panels                  C. electricity                  D. coal burning

10. Mary wondered if Neptune __________ larger than Saturn.

A. was                                B. being                            C. is                                D. be

8 tháng 2 2022

1. B

2. A

3. B

4. D

5. A

6. A

7. A

8. A

9. B

10. A

II. Circle the best word/phrase (A. B. C, or D) to complete the sentences below. (2ps)1. Lien told me that _________ a biology teacher.A. she wants to become      C. she wanted to become               B. she will become         D. she wanted becoming2. People from other planets may use _________ to communicate, which is not possible for human beings.A. landlines                 B. lettersC. chat rooms              D. telepathy3. If I were you, I _________ do something to prevent him from...
Đọc tiếp

II. Circle the best word/phrase (A. B. C, or D) to complete the sentences below. (2ps)

1. Lien told me that _________ a biology teacher.

A. she wants to become      

C. she wanted to become               

B. she will become         

D. she wanted becoming

2. People from other planets may use _________ to communicate, which is not possible for human beings.

A. landlines                 

B. letters

C. chat rooms              

D. telepathy

3. If I were you, I _________ do something to prevent him from littering.

A. would

B. did

C. will

D. do

4. Don’t drink that water. It’s _________.

A. contaminated

B. pure

C. damaged

D. dumped

5. By the time we ........................ to the cinema, the film had started.

A. gets

B. had got

C. has got

D. got

5. The……….in technology allow astronomers to know more about outer space.

A. developments      

B. science            

C. exploration             

D. discovery

6. Alexander Graham Bell was a great….., who invented the telephone.

A. developer             

B. conservationist         

C. scientist      

D. explorer

7. ……….is important because it may help to solve the problem of overpopulation and exhaustion of resources on Earth.

A. Space exploration    

B.Space travelling  

C.Space checking   

D.Space walking

8. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed……

A. oil      

B. Solar panels                

C.electricity             

D. coal burning

9. ………systems use several different ways of giving information with sounds, picture, and texts on a screen .

A. Emailing       

B. Telephoning             

C. Multimedia         

D. Chatting

10. Astronauts use…………to move around when are on the Moon’s surface.

A. spaceships            

B. flying sauce       

C. space cars      

D. moon buggies

1
21 tháng 3 2022

II. Circle the best word/phrase (A. B. C, or D) to complete the sentences below. (2ps)

1. Lien told me that _________ a biology teacher.

A. she wants to become      

C. she wanted to become               

B. she will become         

D. she wanted becoming

2. People from other planets may use _________ to communicate, which is not possible for human beings.

A. landlines                 

B. letters

C. chat rooms              

D. telepathy

3. If I were you, I _________ do something to prevent him from littering.

A. would

B. did

C. will

D. do

4. Don’t drink that water. It’s _________.

A. contaminated

B. pure

C. damaged

D. dumped

5. By the time we ........................ to the cinema, the film had started.

A. gets

B. had got

C. has got

D. got

5. The……….in technology allow astronomers to know more about outer space.

A. developments      

B. science            

C. exploration             

D. discovery

6. Alexander Graham Bell was a great….., who invented the telephone.

A. developer             

B. conservationist         

C. scientist      

D. explorer

7. ……….is important because it may help to solve the problem of overpopulation and exhaustion of resources on Earth.

A. Space exploration    

B.Space travelling  

C.Space checking   

D.Space walking

8. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed……

A. oil      

B. Solar panels                

C.electricity             

D. coal burning

9. ………systems use several different ways of giving information with sounds, picture, and texts on a screen .

A. Emailing       

B. Telephoning             

C. Multimedia         

D. Chatting

10. Astronauts use…………to move around when are on the Moon’s surface.

A. spaceships            

B. flying sauce       

C. space cars      

D. moon buggies