The aircraft vanished without（）

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

（）students often find it difficult to live in China at first.

He（）for military service against the wishes of his parents.

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

I was（）than angry when I saw how they'd ruined the landscape.

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

Our department（）courses in several foreign languages.

An explosion is a sudden increase in amount（）

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