Câu hỏi: The_______ of living here, of course, is that it is expensive.

A. glorious

B. athletic

C. strategy

D. downside

Câu 1: Teachers complain that more of their time is taken up with _______than with teaching.

A. protection

B. administration

C. architecture

D. article

Câu 2: The factory was fined for______ chemicals into the river.

A. dumping

B. discharging

C. producing

D. exposing

Câu 3: Because of people’s______ with the environment, many kinds of plants and animals are becoming rare.

A. supply

B. survival

C. influence

D. interference

Câu 4: Some______ animals become tame if they get used to people.

A. wild

B. domestic

C. endangered

D. rare

Câu 5: The problem of_______ in big cities, which stems from uncontrolled migration from rural areas.

A. overpopulation

B. decrease

C. increase

D. growth

Câu 6: We all regard pollution as a.......... matter to human beings.

A. solemn 

B. great

C. serious 

D. huge