Câu hỏi: 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

Câu 1: The earth is the only planet with a large number of oxygen in its atmosphere.

A. the

B. number

C. oxygen

D. its

Câu 2: The grass needs cutting, so let us have one of the men to take lawn-mower and do it.

A. needs

B. cutting

C. let

D. to take

Câu 3: 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 4: If you work hard, you would be successful in anything you do.

A. you work

B. would be

C. in

D. anything

Câu 5: Developing new technologies are time-consuming and expensive.

A. developing 

B. technologies

C. are

D. time-consuming

Câu 6: 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