You can't watch TV before ------your homework.a finish b.to

问题描述:

You can't watch TV before ------your homework.a finish b.to finish c.finishing
1个回答 分类:英语 2014-11-23

问题解答:

我来补答
答案:C
介词before后面接动词的ing形式、
再问: 那请问can后面的finish是否也要加ing呢?
再答: 不要,情态动词后面接动词原形。
 
 
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