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

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

Our department（）courses in several foreign languages.

Inquiries（）the condition of the patients may be made personally or by telephone.

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

I don't know who on（）stole the diamond last night.

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

Some say yes and others say no; I don't know （）to follow.

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

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