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

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

An explosion is a sudden increase in amount（）

（）students often find it difficult to live in China at first.

The aircraft vanished without（）

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

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

I tried very hard to persuade him to join our group but I met with a flat（）

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

I was（）than angry when I saw how they'd ruined the landscape.