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

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

The aircraft vanished without（）

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

An explosion is a sudden increase in amount（）

Our department（）courses in several foreign languages.

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

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

Anne（）from outside her home last Wednesday.

I could not persuade him to accept it,（）make him see the importance of it.