Nobody knows how long and how seriously the shakiness（不稳定） of big businesses will （） down the economy.

The aircraft vanished without（）

I just managed to（）a quick breath before I was pulled under the water by the passing boats.

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

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

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.

He never（）to read the news but turned at once to the crossword puzzle on the last page.

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