Câu hỏi: Scientists warn that many of the world’s great cities are _______ flooding.

A. being

B. at risk

C. in danger of

D. endangered

Câu 1: We all believe that a happy marriage should be _______ mutual love.

A. confided in

B. concerned with

C. based on

D. obliged to

Câu 2: The _________ prices of property in big cities may deter people on low incomes from owning a house there.

A. forbidding

B. competitive

C. prohibitive

D. inflatable

Câu 3: It’s important to project a(n) ______ image during the interview.

A. optimistic

B. cheerful

C. positive

D. upbeat

Câu 4: She is so ______ to her children that she has decided to quit her job to stay at home and look after them.

A. persistent

B. kind

C. responsible

D. devoted

Câu 5: I am not used to the cold weather here, so I need to have a heating system ______.

A. installed

B. serviced

C. developed

D. repaired

Câu 6: We arranged to meet at the station, but she didn’t _______.

A. get through

B. turn up

C. walk out

D. wait on