he joined the army last year.变为含现在完成时的句子→→It -- -- a year --

问题描述:

he joined the army last year.变为含现在完成时的句子→→It __ __ a year __ he joined the army.空里填什么
1个回答 分类:英语 2014-09-27

问题解答:

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has been,since
 
 
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