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

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

An explosion is a sudden increase in amount（）

The noise of the traffic（）Paul from his work.

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

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

In China,it is quite (nature)（） for people to go back home for the Spring Festival.

She is very nice, but because she has a（）way of speaking, she is slow in making friends

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

Since we can't hear you at the back of the hall, you'll have to（）your voice.