It's a week since he went to BeiJing.请问 这里It's是不是指It is?

问题描述:

It's a week since he went to BeiJing.请问 这里It's是不是指It is?
1个回答 分类:英语 2014-10-06

问题解答:

我来补答
是的 这是个固定结构 It is+段时间+since+过去式的句子 某人做某事有什么时间了
 
 
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