Câu hỏi: Some species of bats are dormant each days and active every night.

A. species of

B. each days

C. every night 

D. are dormant

Câu 1: I enjoyed talking to the people with that I met at the party last night.

A. talking

B. the

C. with that

D. at the party

Câu 2: Regarding as one of the leading figures in the development of the short story, O Henry is the author of many well- known American novels.

A. Regarding as

B. leading figures

C. the

D. novels

Câu 3: It is important that cancer is diagnosed and treated as early as possible in order to assure a successful cure.

A. is diagnosed

B. treated

C. as early as possible

D. to assure

Câu 4: It is vitally important that she takes this medication night and morning.

A. vitally

B. that

C. takes

D. medication

Câu 5: The earth is the only planet with a large number of oxygen in its atmosphere.

A. the

B. number

C. oxygen

D. its

Câu 6: Had it not been for you help me, I wouldn't have succeeded.

A. not

B. you help me

C. wouldn’t

D. succeeded