The aircraft vanished without（）

The weakening housing market continued to take its（）on the industry.

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

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

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

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

I want you to succeed without（）and firmly believe that you will succeed if you try hard enough.

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

Our department（）courses in several foreign languages.

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