People appreciate（）with him because he has a good sense of humor.

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

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

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

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