问题

It’s quite normal to___ ten percent of the cost of a building for a period of six months or so, in case faults are found in it.

A:keep up
B: keep away
C:keep off
D:keep back

正确答案是：

同类题型

There’s________ “u” and _______ “m” in the word “number”.

Life is unpredictable; even the poorest __become the richest.

idance teacher was their adviser, offering them suggestions and solutions when they ______ difficulties.

I’m sure that you will succeed in the end ___________ you give up halfway.

I hear you were hit by a car.- Yes, but the driver drove away_______ I realized it.