Before leaving for the airport I have enough time to do some

问题描述:

Before leaving for the airport I have enough time to do something为什么live家ing?
1个回答 分类:英语 2014-10-12

问题解答:

我来补答
这里是状语从句中的省略情况.
before leaving for the airport就等于before I leave for the airport.
由于从句中的主语跟主句中的主语都是I ,所以从句中的leave就跟主语I 构成了主动关系,那么就用直接省略成现在分词.
 
 
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