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

A. I had

B. carefully

C. made

D. so many

Câu 1: Oxygen plays a important role in maintaining live.

A. a

B. plays

C. role

D. live

Câu 2: The director, as well as his wife and two children, were injured in the accident.

A. the

B. well

C. were

D. in

Câu 3: English, together with Literature and Maths, are compulsory subjects in the national curriculum.

A. English

B. with Literature

C. are

D. national curriculum

Câu 4: David, who mother is Vietnamese, speaks both Vietnamese and English fluently.

A. who

B. is

C. speaks 

D. fluently

Câu 5: Both Mr. and Mrs. Smith are explaining the children the rules of the game.

A. Both Mr. and Mrs. Smith

B. are

C. explaining

D. the children the rules of the game

Câu 6: There are many reasons why a particular species may become endangering.

A. endangering

B. may

C. a

D. reasons why