Itisthreeyears________hehasworked

发布时间：2020-07-10 05:29:12

It is three years ________ he has worked in the pany.













A.since












B.before











C.until











D.that

网友回答

A解析这是一固定句式：It is+一段时间+since+一般过去时或现在完成时，since在此句中用作连词。
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