Câu hỏi: Do you know the country which you has the hightest life_______ in the world?

A. expectancy

B. objective

C. desire

D. ambition

Câu 1: Gavin_______ the idea of dividing the rooms in half.

A. get on with

B. pave the way

C. keep an eye on

D. come up with

Câu 2: All the _______had excellent academic credentials.

A. candidates

B. goverments

C. followers

D. desigers

Câu 3: The problem of_______ in big cities, which stems from uncontrolled migration from rural areas.

A. overpopulation

B. decrease

C. increase

D. growth

Câu 4: He formerly worked as a machinist_______ in Boeing's Everett assembly plant.

A. appriciate

B. apprentice

C. appraise

D. approach

Câu 5: He had a new heart valve _______.

A. added

B. supplanted

C. improved

D. implanted

Câu 6: The factory was fined for______ chemicals into the river.

A. dumping

B. discharging

C. producing

D. exposing