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

An explosion is a sudden increase in amount（）

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

The noise of the traffic（）Paul from his work.

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

The price they offered for my old car was so low that I（）it down.

Shall we request the chairman（）our suggestion again?

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

He never（）to read the news but turned at once to the crossword puzzle on the last page.

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