john has worked as a sales manager since he (join)_joined____this company in 2002

题目

john has worked as a sales manager since he (join)_joined____this company in 2002
答案是joined 为什么呢

答案

答案：【joined】
分析：【这是现在完成时的一个句型,have/has done since +一般过去时.】
翻译：【从他2002年进入公司以来,一直都是做销售经理.】
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