Câu hỏi: Little have people done to alleviate the sea pollution caused by the factories in central Vietnam, haven’t they?

A. have people done

B. caused

C. in central

D. haven’t they

Câu 1: An ambitious person is committed to improve his or her status at work.

A. is

B. improve

C. status

D. at

Câu 2: Not everyone realizes that the most largest organ of the human body is the skin.

A. not everyone

B. most largest

C. human

D. is

Câu 3: Little he knows about the surprise that awaited him.

A. he knows

B. about

C. the

D. awaited

Câu 4: When a lion gets hungry, its manner changes and it becomes threatened.

A. when

B. its manner 

C. and

D. threatened

Câu 5: I enjoy reading the article that you told me about it yesterday.

A. reading

B. that

C. told

D. it

Câu 6: It is believed that in the near future robots will be used to doing things such as cooking.

A. it is believed

B. in the near future

C. be used to cooking

D. such as