Shall we request the chairman（）our suggestion again?

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

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

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

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

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

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

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

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

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