Some say yes and others say no; I don't know （）to follow.

The aircraft vanished without（）

An explosion is a sudden increase in amount（）

The noise of the traffic（）Paul from his work.

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

I expected a bigger payment, but I suppose you have to be（）for small mercies.

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

Many students found the book （）;it provided them with a large amount of information on the subject.

Our department（）courses in several foreign languages.

Mr. Edward was not in, so his brother acted as （）at the party.