Câu hỏi: To reduce pollution, we have to stop using many things that makes our life comfortable.

A. To reproduce pollution

B. using

C. makes

D. comfortable

Câu 1: The company did not want to hire a man that his experiment was so limited.

A. The

B. want to hire

C. that his

D. so limited

Câu 2: Aristotle, the famous Greek philosopher, believed that the brain was an organ that cooled a heart.

A. the famous

B. the brain

C. an organ

D. a heart

Câu 3: Reading several books on that subject, Bill considered himself an expert.

A. Reading

B. books on

C. considered himself

D. expert

Câu 4: A novel is a story long enough to fill a complete book, in that the characters and events are usually imaginary.

A. is

B. long enough

C. in that

D. imaginary

Câu 5: It is very difficult for human beings fighting pollution.

A. difficult

B. for

C. beings

D. fighting

Câu 6: Mrs. Alien was concerned about me having to drive so far every day.

A. about

B. me having

C. so far

D. every day