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: The number of women earning Master's Degrees have risen sharply in recent years.

A. number

B. earning

C. have risen

D. recent years

Câu 2: People in every part of the world readily and easily communicates by means of electronic mail.

A. every part

B. readlily

C. communicates

D. by means

Câu 3: It is vitally important that she takes this medication night and morning.

A. vitally

B. that

C. takes

D. medication

Câu 4: 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 5: 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 6: United States is aimed at develop friendly relations among nations based on respect for the principle of equal rights and self-determination of people.

A. develop

B. based

C. principle

D. people