If he(fails)English exam again,the teacher will call his par

问题描述:

If he(fails)English exam again,the teacher will call his parents.考的知识点?
1个回答 分类:英语 2014-12-04

问题解答:

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if引导的条件状语从句,遵循“主将从现”原则,即主句用一般将来时,从句用一般现在时.
 
 
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