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

The survivors（）to a floating tree in hopes of rescue.

Shall we request the chairman（）our suggestion again?

The aircraft vanished without（）

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

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

I expected a bigger payment, but I suppose you have to be（）for small mercies.

An explosion is a sudden increase in amount（）

The student's first attempt at writing a play was a far（）from the work of Shakespeare.

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