An explosion is a sudden increase in amount（）

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

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

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.

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

Inquiries（）the condition of the patients may be made personally or by telephone.

Anne（）from outside her home last Wednesday.