Câu hỏi: Most bothersome flies belong to the family Sarcophagidae and are popular known as flesh flies because the larvae feed on flesh.

A. belong to

B. popular known

C. because

D. feed on

Câu 1: It is vitally important that she takes this medication night and morning.

A. vitally

B. that

C. takes

D. medication

Câu 2: Mrs. Loan, along with her talented students, are going to be on the summer camp to USA.

A. along with

B. talented

C. are going

D. summer

Câu 3: The assumption that smoking has bad effects on our health have been proved.

A. that

B. effects

C. on

D. have been proved

Câu 4: Had it not been for you help me, I wouldn't have succeeded.

A. not

B. you help me

C. wouldn’t

D. succeeded

Câu 5: 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 6: What we know about certain diseases are still not sufficient to prevent them from spreading easily among the population.

A. What we know

B. are

C. from spreading

D. among