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

An explosion is a sudden increase in amount（）

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

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

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

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

Inquiries（）the condition of the patients may be made personally or by telephone.

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

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

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