Câu hỏi: 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

Câu 1: After spending two days arguing about where to go for their holidays, is was decided that they shouldn’t go anywhere.

A. arguing

B. for

C. is was decided

D. shouldn’t go

Câu 2: The leader demanded from his members a serious attitude towards work, good team spirit, and that they work hard.

A. leader

B. his members

C. attitude

D. that they work hard

Câu 3: If one type of manufacturing expands, it is like that another type will shrink considerably.

A. expands

B. like

C. another

D. considerably

Câu 4: 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 5: If you work hard, you would be successful in anything you do.

A. you work

B. would be

C. in

D. anything

Câu 6: 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