He will behave(crazy)（）if he drinks too much.

An explosion is a sudden increase in amount（）

Since we can't hear you at the back of the hall, you'll have to（）your voice.

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

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 student's first attempt at writing a play was a far（）from the work of Shakespeare.

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

Our department（）courses in several foreign languages.

I want you to succeed without（）and firmly believe that you will succeed if you try hard enough.