Câu hỏi: Many teachers have devoted their lives to teaching therefore teaching is not a well-paid job.

A. devoted

B. lives

C. teaching

D. therefore

Câu 1: He said that he has done his homework since 7 o'clock.

A. said

B. has done

C. homework

D. since

Câu 2: If I had enough money, I would have travelled around the world.

A. enough

B. would have travelled

C. the

D. world

Câu 3: 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 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: He has a great deal of books most of which are on science and technology.

A. a great deal of

B. most of

C. which

D. are on

Câu 6: 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