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

A. who

B. is

C. speaks 

D. fluently

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: Oxygen plays a important role in maintaining live.

A. a

B. plays

C. role

D. live

Câu 3: Because her sickness she didn’t take part in the English competition held in Sunday.

A. Because

B. she

C. take

D. held

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: I can’t go out tonight because I have too many work to do.

A. can’t

B. because

C. too many

D. to do

Câu 6: She did not know where most of the people in the conference was from.

A. did not

B. where

C. the

D. was