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: 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: Anna Robertson Moses, who was also known as Grand Moses, is considered one of the greatest female artist of US. Art.

A. who was

B. known as

C. is considered

D. female artist

Câu 3: Everyday in summer, but especially at the weekends, all kinds of vehicles bring crowds of people to enjoy the various attraction.

A. especially at

B. bring

C. crowds of people

D. various attraction

Câu 4: 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 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: 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