Return the book immediately to the library as soon as you---

问题描述：

Return the book immediately to the library as soon as you_____with it.
A.finish B.are finished C.have finished D.are finishing
为什么不能选C?

1个回答分类：英语 2014-12-11

问题解答：

我来补答

选A.
这种祈使句的形式相当于带有时间状语从句的句子,如下：
I will return the book immediately to the library when I finish with it.
这种句子的时态要求是：主句用一般将来时,从句用一般现在时.
所以不能选C.明白了吗?

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