It's 3 years since I saw him last time. 中的is能否换成has been? 请说

问题描述:

It's 3 years since I saw him last time. 中的is能否换成has been? 请说明原因好吗.
1个回答 分类:英语 2014-11-03

问题解答:

我来补答
可以的
It has been 3 years...
 
 
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