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

A. protection

B. administration

C. architecture

D. article

Câu 1: The _______ by UN troops prevented fighting from breaking out.

A. participant

B. intervention

C. joiner

D. contestant

Câu 2: 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 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: You need to_______ the numbers properly in a column.

A. align

B. check

C. draw

D. write

Câu 5: Some______ animals become tame if they get used to people.

A. wild

B. domestic

C. endangered

D. rare

Câu 6: He had a new heart valve _______.

A. added

B. supplanted

C. improved

D. implanted