Câu hỏi: I had my motorbike repair yesterday but now it still doesn’t work.

A. had

B. repair

C. but now

D. work

Câu 1: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why

Câu 2: My father asked me where had I gone the night before.

A. asked

B. the 

C. before

D. had I

Câu 3: Oxygen plays a important role in maintaining live.

A. a

B. plays

C. role

D. live

Câu 4: If I had studied carefully, I wouldn't made so many mistakes.

A. I had

B. carefully

C. made

D. so many

Câu 5: The man for who the police are looking robbed the bank yesterday.

A. who

B. are

C. robbed

D. the bank

Câu 6: Hardly did he enter the room when all the lights went out.

A. did he enter

B. when

C. the lights

D. went