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

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

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

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

The aircraft vanished without（）

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

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

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

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

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