You may use the book as you like, _______ you keep it clean.A．unlessB．so longC．a

题型：不详难度：来源：

You may use the book as you like, _______ you keep it clean.

A．unless

B．so long

C．as long

D．so long as

答案

解析

略

举一反三

He wrote his first novel ______ studying in a university.

A．since

B．as

C．while

D．with

题型：不详难度：| 查看答案

______ you ever have any trouble, let me know.

A．If

B．Whenever

C．While

D．X

题型：不详难度：| 查看答案

It"s ______ he helped you that I"m ready to help him.

A．the reason

B．for

C．because

D．since

题型：不详难度：| 查看答案

There isn’t such a word ______ I know.

A．as soon as

B．as long as

C．so long as

D．so far as

题型：不详难度：| 查看答案

It is said that the school will be built in__________is called developing zone.

A．what

B．that

C．which

D．where

题型：不详难度：| 查看答案