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: Did you say that you will have a lot of things to do the following week?

A. that

B. will

C. to do

D. the following

Câu 2: The workers are building a new bridge which is 150 meters in high.

A. building

B. a new bridge

C. which

D. high

Câu 3: We have been making prepare for our final exammination for two months.

A. have been making

B. prepare

C. for

D. months

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

A. Reading

B. books on

C. considered himself

D. expert

Câu 6: Sex's education is instituted to help the student understandthe process of maturation, to eliminate anxieties related to development, to learn values, and to prevent disease.

A. sex’s education

B. understand

C. to eliminate anxieties

D. related