All the tickets having been sold out与As all the tickets had

问题描述:

All the tickets having been sold out与As all the tickets had been sold out都一个意思为什么用as
1个回答 分类:英语 2014-10-29

问题解答:

我来补答
尽管意思一样但是结构不同,前者是独立主格结构,而后者是一个完整的句子,是由
as引导的原因状语从句.
 
 
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