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

She couldn't（）laughing at him in those clothes.

His company promised to pay for his health （）in addition to other benefits.

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

The survivors（）to a floating tree in hopes of rescue.

I could not persuade him to accept it,（）make him see the importance of it.

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

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

Shall we request the chairman（）our suggestion again?

An explosion is a sudden increase in amount（）