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

A. a

B. plays

C. role

D. live

Câu 1: Most of the houses on the street was built in the previous century.

A. of

B. on

C. previous

D. was

Câu 2: The man for who the police are looking robbed the bank yesterday.

A. who

B. are

C. robbed

D. the bank

Câu 3: Publishing in the UK, the book has won a number of awards in recent regional book fairs.

A. publishing

B. has won

C. in

D. book fairs

Câu 4: He passed the exams with high scores, that made his parents happy.

A. passed

B. with

C. that 

D. happy

Câu 5: David, who mother is Vietnamese, speaks both Vietnamese and English fluently.

A. who

B. is

C. speaks 

D. fluently

Câu 6: If I had studied carefully, I wouldn't made so many mistakes.

A. I had

B. carefully

C. made

D. so many