Câu hỏi: The US, that is one of the most powerful countries, decided to declare a war to Iraq.

A. that

B. powerful

C. decided

D. a war to

Câu 1: Would you mind showing me how working the lift?

A. mind

B. showing

C. how

D. working

Câu 2: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. with

B. are

C. many

D. in our large

Câu 3: He said that he has done his homework since 7 o'clock.

A. said

B. has done

C. homework

D. since

Câu 4: The threat of being dismissed do not worry me any more because I have started my own business.

A. The

B. being dismissed

C. do not worry

D. my own business

Câu 5: By the time the police come the robber had run away.

A. By the time

B. the

C. come

D. had run

Câu 6: By the mid-nineteenth century, land was such expensive in large cities that architects began to conserve space by designing skyscrapers.

A. By the mid-nineteenth century

B. such expensive

C. conserve

D. by designing