Đáp án+Giải thích:

1. C ( Need do sth : cần làm gì.)

2. D ( Cấu trúc: TĐT + to + V_inf: nên làm gì.)

3. B ( Could/Couln't + V_inf.)

4. A (Cấu trúc: Must + have + V3)

5. D (Cấu trúc: Might + have + V3)

6. B (Cấu trúc: Should/ought to have + V3)

7. C ( như câu 4)

*Lưu ý: 4 5 6 7 đều là câu trúc câu dự đoán nhé ^.^

1. ________ run so fast?(need do sth:cần làm gì)

A. Does he need

B. Need he to

C. Need he

D. Needs he

2. He didn't need ________ out of his room in Moscow.

(didn’t need to do something: đã không cần phải làm gì.)

A. go

B. to going

C. going

D. to go

3. I could not ________ it even though I had wanted to do so.

A. had bought

B. buy

C. buying

D. have bought

4. I left my pen in this box, but it isn’t there now. Someone________ it.(must+have +P2)

A. must have taken

B. must take

C. had to take

D. had taken

5. Mary received 100 dollars from her sister. She________ the ring she wanted. It only costs 10 dollars.(might+have+P2)

A. buys

B. had bought

C. bought

D. might have bought

6. It lost my Honda last week; I hadn't locked it. You ________ it.(should /ought to have +P2)

A. should lock

B. should have locked

C. ought to lock

D. could lock

7. In 1900 the world had no deaths from rabies. Scientists ________ wonderful vaccine.

(must+have +P2)

A. has discovered

B. discovered

C. must have discovered

D. should have discovered