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: My uncle was _______ ill last summer; however, fortunately, he is now making a slow but steady recovery.

A. seriously

B. deeply

C. fatally

D. critically

Câu 2: We all believe that a happy marriage should be _______ mutual love.

A. confided in

B. concerned with

C. based on

D. obliged to

Câu 3: When I was a child, I loved to splash through the ______ after rain.

A. pools

B. puddles

C. ponds

D. rivers

Câu 4: The operation of the newly constructed plants is likely to lead to _________ environmental consequences.

A. far-reaching

B. far-off

C. far-gone

D. far-flung

Câu 5: They were among the first companies to exploit the ______ of the Internet.

A. potential

B. prospect

C. possibility

D. ability

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