Câu hỏi: The workers went on strikes because of they thought their wages were low.

A. on

B. because of

C. thought

D. were

Câu 1: 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 2: Today the number of people enjoying winter sports are almost double that of twenty years ago.

A. of

B. enjoying

C. are

D. that

Câu 3: Would you mind showing me how working the lift?

A. mind

B. showing

C. how

D. working

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: She has disappeared three days ago, and they are still looking for her now.

A. has disappeared

B. and

C. are still

D. for her

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