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

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

The aircraft vanished without（）

An explosion is a sudden increase in amount（）

Our department（）courses in several foreign languages.

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

We forgave her anger because we knew that her father's illness had put her under great （）

Shall we request the chairman（）our suggestion again?

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

She couldn't（）laughing at him in those clothes.