问题

Clean water and fresh air are essential for our daily life, _______ we can’t live.

A:by which
B:without which
C:leanthat
D:on which

正确答案是：

同类题型

I think English is ____unimportant subject.—I don’t think so. It is ____useful tool when we talk with foreigners.

The girl didn’t know who ______ for the broken vase.

What are you going to do this afternoon? — I will probably play computer games ________ my parents are out.

下列各句中没有语病的一句是（）

She was________by what he said.