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

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

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

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

The aircraft vanished without（）

Inquiries（）the condition of the patients may be made personally or by telephone.

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

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

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

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