The aircraft vanished without（）

She had clearly no（）of doing any work, although she was very well paid.

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

Mr. Sanders has been asked to（）the next meeting of the committee.

His company promised to pay for his health （）in addition to other benefits.

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

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

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.