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

An explosion is a sudden increase in amount（）

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

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

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

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

People appreciate（）with him because he has a good sense of humor.

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

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

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