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

Our department（）courses in several foreign languages.

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

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

I want you to succeed without（）and firmly believe that you will succeed if you try hard enough.

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

Mr. Sanders has been asked to（）the next meeting of the committee.

An explosion is a sudden increase in amount（）

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

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