The aircraft vanished without（）

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

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

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

I just managed to（）a quick breath before I was pulled under the water by the passing boats.

We forgave her anger because we knew that her father's illness had put her under great （）

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

In China,it is quite (nature)（） for people to go back home for the Spring Festival.

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

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