210+ bài tập ngữ pháp tiếng Anh có đáp án (PDF tải xuống)

Bài tập ngữ pháp tiếng Anh số 1 – 13 thì

1. When I ___ (wake up) this morning, the sun ___ (shine) and the birds ___ (sing).
2. By the time she ___ (arrive), we ___ (already/finish) our dinner.
3. He usually ___ (go) to school by bus, but today he ___ (walk) because the bus ___ (break down).
4. I ___ (study) for three hours before you ___ (call) me last night.
5. Look! Someone ___ (leave) their bag on the table. Who ___ (it/belong) to?
6. She ___ (work) in this company for five years before she ___ (quit) her job.
7. If you ___ (not/hurry), we ___ (miss) the train!
8. I ___ (never/see) such a beautiful sunset before. It ___ (be) breathtaking.
9. While they ___ (play) football, it suddenly ___ (start) to rain.
10. When I ___ (graduate) next year, I ___ (study) at this university for four years.

1. woke up, was shining, were singing
2. arrived, had already finished
3. goes, is walking, has broken down
4. had been studying, called
5. has left, does it belong
6. had worked, quit
7. don’t hurry, will miss
8. have never seen, is
9. were playing, started
10. graduate, will have been studying

Bài tập ngữ pháp tiếng Anh số 1 – Bài tập về các thì trong tiếng Anh

Bài tập ngữ pháp tiếng Anh số 2 – Từ loại

1. The weather was so ___ (change) that we had to cancel our trip.
2. She looked ___ (anxiety) as she waited for the test results.
3. His ___ (perform) in the play was outstanding.
4. They need to work ___ (hard) to achieve their goals.
5. The company is planning to ___ (expansion) its operations to other countries.
6. Her ___ (kind) to strangers is truly inspiring.
7. We need a more ___ (effect) strategy to solve this problem.
8. After years of training, he became a highly ___ (skill) athlete.
9. I found the movie quite ___ (bore), so I left halfway through.
10. Their ___ (friend) made the trip even more enjoyable.

1. changeable
2. anxious
3. performance
4. hard
5. expand
6. kindness
7. effective
8. skilled
9. boring
10. friendship

Bài tập ngữ pháp tiếng Anh số 2 – Bài tập từ loại tiếng Anh

Bài tập ngữ pháp tiếng Anh số 3 – Mạo từ

1. He found ___ old coin while digging in his garden.
2. My mother made ___ delicious cake for my birthday.
3. We had dinner at ___ restaurant near the river last night.
4. She read ___ interesting article about space exploration.
5. ___ moon looks beautiful tonight.
6. I met ___ European tourist at the museum yesterday.
7. They plan to climb ___ Himalayas next summer.
8. Do you have ___ pen I can borrow?
9. ___ water in this lake is very clean.
10. My brother is studying at ___ university in the city center.

1. an
2. a
3. a
4. an
5. The
6. a
7. the
8. a
9. The
10. a

Bài tập ngữ pháp tiếng Anh số 3 – Bài tập mạo từ a, an, the

Bài tập ngữ pháp tiếng Anh số 4 – Sự hòa hợp chủ ngữ và động từ

1. Either the manager or the employees ___ responsible for the mistake.

• A. is
• B. are
• C. has
• D. were

2. The furniture in my house ___ all brand new.

• A. is
• B. are
• C. has
• D. was

3. Everyone in the class ___ happy with the results of the exam.

• A. is
• B. are
• C. were
• D. have

4. A pile of dirty dishes ___ left in the sink.

• A. is
• B. are
• C. was
• D. were

5. Either my cousin or my sister ___ going to visit us this weekend.

• A. is
• B. are
• C. have
• D. were

6. The police ___ investigating the crime thoroughly.

• A. is
• B. are
• C. has
• D. was

7. This pair of shoes ___ very comfortable to wear.

• A. is
• B. are
• C. have
• D. were

8. None of the students ___ late to the class yesterday.

• A. is
• B. are
• C. was
• D. were

9. The number of people at the event ___ surprising to everyone.

• A. is
• B. are
• C. was
• D. have

10. All of the books on the shelf ___ been dusted and arranged neatly.

• A. is
• B. are
• C. has
• D. have

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

Bài tập ngữ pháp tiếng Anh số 4 – Bài tập sự hòa hợp giữa chủ ngữ và động từ

Bài tập ngữ pháp tiếng Anh số 5 – Câu điều ước

1. He is too lazy to complete the homework on time. → He is not ____________________.
2. I haven’t seen her for a long time. → The last time I ____________________.
3. “Where did you go yesterday?” she asked me. → She asked me ____________________.
4. I regret not studying harder for the exam. → I wish ____________________.
5. They don’t let students eat in the classroom. → Students are not ____________________.
6. The house is too expensive for us to buy. → The house is not ____________________.
7. She hasn’t visited her grandparents since last summer. → The last time she ____________________.
8. “What time will the train arrive?” he asked. → He asked ____________________.
9. It’s a pity we can’t travel abroad this year. → I wish ____________________.
10. The manager didn’t allow employees to leave early. → Employees were not ____________________.

1. He is not hardworking enough to complete the homework on time.
2. The last time I saw her was a long time ago.
3. She asked me where I had gone the day before.
4. I wish I had studied harder for the exam.
5. Students are not allowed to eat in the classroom.
6. The house is not affordable enough for us to buy.
7. The last time she visited her grandparents was last summer.
8. He asked what time the train would arrive.
9. I wish we could travel abroad this year.
10. Employees were not allowed to leave early by the manager.

Bài tập ngữ pháp tiếng Anh số 6 – Câu điều kiện

1. She didn’t attend the meeting, so she missed the important announcement. → If she ____________________.
2. I didn’t wake up early, so I missed the bus. → If I ____________________.
3. He didn’t practice enough, so he didn’t win the competition. → If he ____________________.
4. They don’t live closer to the city, so they can’t commute easily. → If they ____________________.
5. We didn’t have a map, so we got lost. → If we ____________________.
6. The weather was bad, so we didn’t go hiking. → If the weather ____________________.
7. He didn’t take the advice, so he made a mistake. → If he ____________________.
8. She doesn’t exercise regularly, so she isn’t fit. → If she ____________________.
9. They weren’t careful, so they caused the accident. → If they ____________________.
10. I don’t have enough time, so I can’t join the club. → If I ____________________.

1. If she had attended the meeting, she wouldn’t have missed the important announcement.
2. If I had woken up early, I wouldn’t have missed the bus.
3. If he had practiced enough, he would have won the competition.
4. If they lived closer to the city, they could commute easily.
5. If we had had a map, we wouldn’t have gotten lost.
6. If the weather had been good, we would have gone hiking.
7. If he had taken the advice, he wouldn’t have made a mistake.
8. If she exercised regularly, she would be fit.
9. If they had been careful, they wouldn’t have caused the accident.
10. If I had enough time, I could join the club.

Bài tập ngữ pháp tiếng Anh số 6 – Bài tập câu điều kiện loại 1, 2, 3

Bài tập ngữ pháp tiếng Anh số 7 – Cấu trúc câu

1. I stayed up late because I had to finish my homework. → If I hadn’t ____________________.
2. They built this bridge 50 years ago. → This bridge ____________________.
3. She is too short to reach the top shelf. → She is not tall ____________________.
4. We don’t have enough money to buy that car. → If we ____________________.
5. “Can you help me with my project?” she asked. → She asked me ____________________.
6. I didn’t go to the party because I wasn’t invited. → If I had ____________________.
7. “Please close the window,” he said to me. → He asked me ____________________.
8. People say that she is a talented actress. → She is said ____________________.
9. He didn’t prepare well for the exam, so he failed. → If he had ____________________.
10. They will deliver the package tomorrow. → The package ____________________.

1. If I hadn’t had to finish my homework, I wouldn’t have stayed up late.
2. This bridge was built 50 years ago.
3. She is not tall enough to reach the top shelf.
4. If we had enough money, we could buy that car.
5. She asked me to help her with her project.
6. If I had been invited, I would have gone to the party.
7. He asked me to close the window.
8. She is said to be a talented actress.
9. If he had prepared well for the exam, he wouldn’t have failed.
10. The package will be delivered tomorrow.

Bài tập ngữ pháp tiếng Anh số 7 – Bài tập cấu trúc câu

Bài tập ngữ pháp tiếng Anh số 8 – Mệnh đề quan hệ

1. The man is very kind. He helped me yesterday. → The man ____________________.
2. I met a woman. She is a famous actress. → I met a woman ____________________.
3. The book is on the table. It belongs to me. → The book ____________________.
4. The city is very crowded. I was born there. → The city ____________________.
5. The movie was very interesting. We watched it last night. → The movie ____________________.
6. The person is my best friend. You are talking about him. → The person ____________________.
7. The building is very old. It was built in the 18th century. → The building ____________________.
8. The doctor examined me yesterday. He is very famous. → The doctor ____________________.
9. The bicycle belongs to my brother. It is blue. → The bicycle ____________________.
10. The woman has just arrived. She is our new teacher. → The woman ____________________.

1. The man who helped me yesterday is very kind.
2. I met a woman who is a famous actress.
3. The book which belongs to me is on the table.
4. The city where I was born is very crowded.
5. The movie which we watched last night was very interesting.
6. The person you are talking about is my best friend.
7. The building which was built in the 18th century is very old.
8. The doctor who examined me yesterday is very famous.
9. The bicycle which is blue belongs to my brother.
10. The woman who has just arrived is our new teacher.

Bài tập ngữ pháp tiếng Anh số 8 – Bài tập mệnh đề quan hệ

Bài tập ngữ pháp tiếng Anh số 9 – Câu tường thuật

1. He said, “I am reading a book now.” → He said that ____________________.
2. She said, “I will call you tomorrow.” → She said that ____________________.
3. They said, “We visited Ha Long Bay last summer.” → They said that ____________________.
4. John asked me, “Do you like coffee?” → John asked me ____________________.
5. Mary asked, “What time does the train arrive?” → Mary asked ____________________.
6. The teacher said, “Don’t talk in class!”

7. He said, “Please help me with this project.”

8. She said, “Open the window, please.”

9. My father said, “Clean your room right now!”

10. The officer said, “Show me your ID card.”

1. He said that he was reading a book then.
2. She said that she would call me the next day.
3. They said that they had visited Ha Long Bay the previous summer.
4. John asked me if I liked coffee.
5. Mary asked what time the train arrived.
6. The teacher told us not to talk in class.
7. He asked me to help him with that project.
8. She asked me to open the window.
9. My father told me to clean my room right then.
10. The officer asked me to show him my ID card.

Bài tập ngữ pháp tiếng Anh số 9 – Bài tập câu tường thuật

Bài tập ngữ pháp tiếng Anh số 10 – Câu bị động

1. This letter __________ (send) to you yesterday.
2. A new supermarket __________ (build) in our neighborhood next year.
3. The room __________ (clean) thoroughly before the guests arrived.
4. These flowers __________ (water) every morning by the gardener.
5. His car __________ (repair) at the moment.
6. The report __________ (write) by the secretary tomorrow.
7. The stolen painting __________ (find) by the police last week.
8. Many houses __________ (destroy) by the flood last month.
9. The project __________ (complete) by the end of this month.
10. The documents __________ (sign) by the manager right now.

1. was sent
2. will be built
3. had been cleaned
4. are watered
5. is being repaired
6. will be written
7. was found
8. were destroyed
9. will have been completed
10. are being signed

Bài tập ngữ pháp tiếng Anh số 10 – Bài tập câu bị động

Bài tập ngữ pháp tiếng Anh số 11 – Động từ khiếm khuyết

1. It’s a good idea for you to drink more water. → You ____________________.
2. It’s not allowed to use your phone in the exam room. → You ____________________.
3. It’s not necessary for us to hurry. We have plenty of time. → We ____________________.
4. It’s possible that he forgot about the meeting. → He ____________________.
5. It’s mandatory for passengers to fasten their seatbelts. → Passengers ____________________.
6. It’s not possible for her to finish the project in one day. → She ____________________.
7. It’s a strong possibility that they are already at the station. → They ____________________.
8. It’s necessary for everyone to follow the instructions carefully. → Everyone ____________________.
9. It’s not a good idea to skip meals. → You ____________________.
10. It’s possible that we’ll have rain tomorrow. → We ____________________.

1. You should drink more water.
2. You must not use your phone in the exam room.
3. We don’t need to hurry.
4. He might have forgotten about the meeting.
5. Passengers must fasten their seatbelts.
6. She can’t finish the project in one day.
7. They might already be at the station.
8. Everyone must follow the instructions carefully.
9. You should not skip meals.
10. We might have rain tomorrow.

Bài tập ngữ pháp tiếng Anh số 11 – Bài tập động từ khiếm khuyết

Bài tập ngữ pháp tiếng Anh số 12 – Danh động từ và động từ nguyên mẫu

1. She enjoys __________ (read) books in her free time.
2. I decided __________ (go) to the party last night.
3. They are planning __________ (visit) Europe next summer.
4. He doesn’t mind __________ (help) his classmates with their homework.
5. I can’t afford __________ (buy) a new car right now.
6. She stopped __________ (talk) to focus on her work.
7. He keeps __________ (call) me even though I asked him to stop.
8. It’s important __________ (remember) to lock the door before you leave.
9. My father suggested __________ (take) a short break before continuing.
10. I hope __________ (meet) her again someday.

1. reading
2. to go
3. to visit
4. helping
5. to buy
6. talking
7. calling
8. to remember
9. taking
10. to meet

Bài tập ngữ pháp tiếng Anh số 12 – Bài tập danh động từ và động từ nguyên mẫu

Bài tập ngữ pháp tiếng Anh số 13 – Cụm động từ

1. She’s trying to ___ smoking because it’s bad for her health.

• A. take up
• B. give up
• C. put out
• D. bring up

2. Could you ___ the volume? I can’t hear anything.

• A. turn on
• B. turn up
• C. turn off
• D. turn down

3. We need to ___ the meeting until next week because the manager is unavailable.

• A. put off
• B. take off
• C. give off
• D. turn off

4. I can’t find my keys. Can you help me ___ them?

• A. look into
• B. look for
• C. look after
• D. look out

5. She grew up in a small village but managed to ___ in the city as an adult.

• A. take on
• B. get by
• C. grow up
• D. put up

6. Don’t forget to ___ your shoes before entering the house.

• A. put on
• B. take off
• C. bring up
• D. turn on

7. We need to ___ our plans due to unexpected problems.

• A. carry out
• B. call off
• C. put out
• D. take up

8. He didn’t ___ the truth until much later.

• A. find out
• B. give up
• C. look after
• D. turn off

9. The firemen managed to ___ the fire quickly.

• A. take out
• B. put out
• C. bring out
• D. turn out

10. She asked me to ___ her children while she went to the supermarket.

• A. look for
• B. look after
• C. look into
• D. turn on

11. He had to ___ his project due to lack of funding.

• A. give up
• B. take out
• C. look into
• D. get on

12. Please ___ this form and return it to me by tomorrow.

• A. fill out
• B. give out
• C. turn up
• D. bring out

13. I don’t know how she manages to ___ on such a small salary.

• A. take out
• B. give off
• C. get by
• D. put up

14. The thief managed to ___ with the stolen jewelry.

• A. get away
• B. look out
• C. give up
• D. turn down

15. Could you ___ the lights when you leave the room?

• A. turn up
• B. turn on
• C. turn off
• D. turn down

16. He promised to ___ the matter and get back to us soon.

• A. look for
• B. look after
• C. look into
• D. look out

17. They decided to ___ their wedding due to unforeseen circumstances.

• A. call off
• B. put out
• C. turn off
• D. bring out

18. The teacher asked the students to ___ the question before answering.

• A. look out
• B. think over
• C. give up
• D. turn down

19. The hotel staff managed to ___ a solution to the problem.

• A. put off
• B. come up with
• C. look after
• D. turn out

20. He had to ___ some new responsibilities after his promotion.

• A. take off
• B. take on
• C. put up
• D. turn on

1. B. give up
2. B. turn up
3. A. put off
4. B. look for
5. B. get by
6. B. take off
7. B. call off
8. A. find out
9. B. put out
10. B. look after
11. A. give up
12. A. fill out
13. C. get by
14. A. get away
15. C. turn off
16. C. look into
17. A. call off
18. B. think over
19. B. come up with
20. B. take on

Bài tập ngữ pháp tiếng Anh số 13 – Bài tập cụm động từ (Phrasal verbs)

Bài tập ngữ pháp tiếng Anh số 14 – Đảo ngữ

1. She didn’t notice the mistake until it was too late. → Not until it was too late ____________________.
2. I have never experienced such a challenging task. → Never ____________________.
3. As soon as the movie started, the lights went out. → No sooner ____________________.
4. He seldom speaks in public. → Seldom ____________________.
5. If she had studied harder, she would have passed the exam. → Had she ____________________.
6. They didn’t realize the danger until the storm hit. → Not until the storm hit ____________________.
7. We have rarely encountered such harsh weather conditions. → Rarely ____________________.
8. As soon as she opened the door, the dog ran out. → Hardly ____________________.
9. He didn’t apologize until I confronted him. → Not until I confronted him ____________________.
10. If I were in your position, I would take the job. → Were I ____________________.

1. Not until it was too late did she notice the mistake.
2. Never have I experienced such a challenging task.
3. No sooner had the movie started than the lights went out.
4. Seldom does he speak in public.
5. Had she studied harder, she would have passed the exam.
6. Not until the storm hit did they realize the danger.
7. Rarely have we encountered such harsh weather conditions.
8. Hardly had she opened the door when the dog ran out.
9. Not until I confronted him did he apologize.
10. Were I in your position, I would take the job.

Bài tập ngữ pháp tiếng Anh số 14 – Bài tập câu đảo ngữ

Bài tập ngữ pháp tiếng Anh số 15 – Câu chẻ

1. He made the biggest contribution to the project. → It was ____________________ who ____________________.
2. We chose this restaurant because it has the best seafood. → It was ____________________ that ____________________.
3. I need more time to complete the assignment. → What I need ____________________.
4. Anna told me the secret last night. → It was ____________________ who ____________________.
5. Her kindness touched everyone in the room. → What ____________________.
6. They built this bridge in 2010. → It was ____________________ that ____________________.
7. The children painted the wall yesterday. → It was ____________________ who ____________________.
8. We are looking for someone with strong communication skills. → What we are looking for ____________________.
9. The party started late because the host arrived late. → It was ____________________ that ____________________.
10. She gave me this gift on my birthday. → It was ____________________ who ____________________.

1. It was he who made the biggest contribution to the project.
2. It was because it has the best seafood that we chose this restaurant.
3. What I need is more time to complete the assignment.
4. It was Anna who told me the secret last night.
5. What touched everyone in the room was her kindness.
6. It was in 2010 that they built this bridge.
7. It was the children who painted the wall yesterday.
8. What we are looking for is someone with strong communication skills.
9. It was because the host arrived late that the party started late.
10. It was she who gave me this gift on my birthday.

Bài tập ngữ pháp tiếng Anh số 15 – Bài tập câu chẻ

Bài tập ngữ pháp tiếng Anh số 16 – Từ chỉ số lượng

1. She has ___ friends in this city, but they are all very close to her. (a few / few)
2. We need ___ water to cook rice. (some / any)
3. There was ___ traffic on the way to the airport, so we arrived early. (little / few)
4. I’ve eaten ___ of the cake; it was delicious. (some / many)
5. He knows ___ about this topic, so he couldn’t answer the question. (a little / little)
6. There aren’t ___ chairs in the room; let’s bring some more. (many / much)
7. We had ___ time to visit all the tourist attractions in the city. (a little / much)
8. Could I borrow ___ money from you? I forgot my wallet at home. (some / any)
9. There were ___ people at the event due to the bad weather. (a few / few)
10. She drank ___ coffee before the meeting to stay awake. (a lot of / much)

1. a few
2. some
3. little
4. some
5. little
6. many
7. a little
8. some
9. few
10. a lot of

Bài tập ngữ pháp tiếng Anh số 16 – Bài tập từ chỉ số lượng trong tiếng Anh

Bài tập ngữ pháp tiếng Anh số 17 – So sánh

1. bigger / much / this / is / house / than / one / that.
2. taller / is / John / as / not / his / brother / as.
3. more / than / expensive / this / watch / is / that / one.
4. runs / faster / her / she / than / best / friend.
5. most / the / this / is / beautiful / flower / garden / the / in.
6. study / you / the / better / you / the / harder / results / get.
7. this / is / as / room / as / clean / that / one.
8. plays / better / than / she / her / tennis / coach.
9. the / smarter / he / gets / grows / older / he / the.
10. food / this / as / delicious / not / is / as / the / restaurant / serves.

1. This house is much bigger than that one.
2. John is not as tall as his brother.
3. This watch is more expensive than that one.
4. She runs faster than her best friend.
5. This is the most beautiful flower in the garden.
6. The harder you study, the better results you get.
7. This room is as clean as that one.
8. She plays tennis better than her coach.
9. The older he grows, the smarter he gets.
10. This food is not as delicious as the restaurant serves.

Bài tập ngữ pháp tiếng Anh số 17 – Bài tập so sánh hơn, nhất và bằng

Bài tập ngữ pháp tiếng Anh số 18 – Câu giả định

1. The teacher recommended that we should read more books. → The teacher recommended that we ____________________.
2. It’s essential that she submit the application before the deadline. → It’s essential that she ____________________.
3. I regret not visiting my grandparents last summer. → I wish I ____________________.
4. He didn’t apologize, and now we’re not speaking to each other. → If only he ____________________.
5. They don’t have enough money to buy a new house. → I wish they ____________________.
6. The principal suggested that the students wear uniforms to school. → The principal suggested that the students ____________________.
7. It’s important that he attend the meeting on time. → It’s important that he ____________________.
8. I regret not taking that job offer. → I wish I ____________________.
9. She didn’t bring her ID, so she couldn’t enter the building. → If only she ____________________.
10. We are not living closer to the city center, which makes commuting difficult. → I wish we ____________________.

1. The teacher recommended that we read more books.
2. It’s essential that she submit the application before the deadline.
3. I wish I had visited my grandparents last summer.
4. If only he had apologized, we would be speaking to each other now.
5. I wish they had enough money to buy a new house.
6. The principal suggested that the students wear uniforms to school.
7. It’s important that he attend the meeting on time.
8. I wish I had taken that job offer.
9. If only she had brought her ID, she could have entered the building.
10. I wish we were living closer to the city center.

Bài tập ngữ pháp tiếng Anh số 18 – Bài tập câu giả định

Bài tập ngữ pháp tiếng Anh số 19 – Collocations

1. He apologized for his mistake. → He made ____________________.
2. She is trying very hard to finish the project. → She is making ____________________.
3. They reached an agreement after a long discussion. → They came ____________________.
4. I paid attention to the teacher’s explanation. → I gave ____________________.
5. The team is improving significantly in their performance. → The team is making ____________________.
6. Can you help me carry this heavy bag? → Can you do ____________________?
7. He took full advantage of the opportunity to study abroad. → He made ____________________.
8. She took care of her little brother while their parents were away. → She looked ____________________.
9. They threw a party to celebrate their success. → They had ____________________.
10. He ignored her advice completely. → He paid ____________________.

1. He made an apology for his mistake.
2. She is making a great effort to finish the project.
3. They came to an agreement after a long discussion.
4. I gave my attention to the teacher’s explanation.
5. The team is making significant progress in their performance.
6. Can you do me a favor and carry this heavy bag?
7. He made the most of the opportunity to study abroad.
8. She looked after her little brother while their parents were away.
9. They had a party to celebrate their success.
10. He paid no attention to her advice.

Bài tập ngữ pháp tiếng Anh số 19 – Bài tập collocations

Bài tập ngữ pháp tiếng Anh số 20 – Lược bỏ từ

1. He likes traveling more than he ___ staying at home.

• A. enjoy
• B. does
• C. doing
• D. do

2. She wanted to visit Paris, but she couldn’t ___ the time.

• A. find
• B. found
• C. finding
• D. finds

3. I don’t enjoy cooking, but my sister ___.

• A. do
• B. does
• C. doing
• D. did

4. They left earlier than we ___.

• A. leave
• B. did
• C. had
• D. does

5. I wanted to attend the event, but I couldn’t ___ a ticket.

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

6. We don’t have any pets, but they ___.

• A. have
• B. do
• C. has
• D. did

7. She enjoyed the play more than her brother ___.

• A. enjoy
• B. enjoyed
• C. did
• D. does

8. If you don’t know the answer, you can ask me to ___.

• A. help
• B. helps
• C. helping
• D. helped

9. I’m not good at math, but he ___.

• A. is
• B. are
• C. does
• D. do

10. They will come to the party, or at least I hope they ___.

• A. will
• B. do
• C. are
• D. did

1. B. does
2. A. find
3. B. does
4. B. did
5. B. buy
6. B. do
7. C. did
8. A. help
9. A. is
10. A. will

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