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

A. glorious

B. athletic

C. strategy

D. downside

Câu 1: The problem of_______ in big cities, which stems from uncontrolled migration from rural areas.

A. overpopulation

B. decrease

C. increase

D. growth

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

A. dumping

B. discharging

C. producing

D. exposing

Câu 3: He had a new heart valve _______.

A. added

B. supplanted

C. improved

D. implanted

Câu 4: All the _______had excellent academic credentials.

A. candidates

B. goverments

C. followers

D. desigers

Câu 5: Teachers complain that more of their time is taken up with _______than with teaching.

A. protection

B. administration

C. architecture

D. article

Câu 6: Intelligent ___________ are widely used in many fields such as heavy industries, hospital medicine business, and the military.

A. machines

B. service

C. advisement

D. computers