（）two years（）she became a college student.

学习时间:2026-03-30 11:50:36 阅读：7596

（）two years（）she became a college student.A.It was ;when B.It is;when C.It was;since D.It is ;since求答案和选择原因

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2026-03-30 11:50:36

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D。It is ;since在主句表示多长时间时,可以用一般现在时代替现在完成,此处就是用it is 代it has been,since本来是现在完成时的时间标志语。

（ ）two years（ ）she became a college student.