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

Our department（）courses in several foreign languages.

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

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

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

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

Mr. Edward was not in, so his brother acted as （）at the party.

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

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.