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

A. said

B. has done

C. homework

D. since

Câu 1: 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 2: Would you mind showing me how working the lift?

A. mind

B. showing

C. how

D. working

Câu 3: 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 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: Instead of calling off the meeting, maybe we can just put it over until next month.

A. calling off

B. can

C. put it over

D. next month

Câu 6: In the end of the party, Mary found herself washing the dishes alone again, as usual.

A. In the end of

B. herself

C. washing

D. as usual