I tried very hard to persuade him to join our group but I met with a flat（）

I just managed to（）a quick breath before I was pulled under the water by the passing boats.

Our department（）courses in several foreign languages.

I don't know who on（）stole the diamond last night.

The price they offered for my old car was so low that I（）it down.

The aircraft vanished without（）

After she became a lawyer, she decided to （）criminal law.

Mr. Sanders has been asked to（）the next meeting of the committee.

We forgave her anger because we knew that her father's illness had put her under great （）

Nobody knows how long and how seriously the shakiness（不穩(wěn)定） of big businesses will （） down the economy.