The aircraft vanished without（）

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

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

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

I tried very hard to persuade him to join our group but I met with a flat（）

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

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

After she became a lawyer, she decided to （）criminal law.

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

The weakening housing market continued to take its（）on the industry.