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

A. the

B. number

C. oxygen

D. its

Câu 1: 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 2: The assumption that smoking has bad effects on our health have been proved.

A. that

B. effects

C. on

D. have been proved

Câu 3: Each of the beautiful cars in the shop was quickly sold to their owner.

A. Each

B. cars

C. quickly

D. their

Câu 4: Developing new technologies are time-consuming and expensive.

A. developing 

B. technologies

C. are

D. time-consuming

Câu 5: 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 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