题目

—Is this the first time that you ______ Nanchang?—No. But it has been 3 years since I last ____ here.A.visit; come B.have visited; came C.visited; came D.have visited; come 答案：【答案】B【解析】考查时态。句意：—这是你第一次来南昌吗？—-不。但是自从我上次来这里已经三年了。这里考查句式This is the first time that…“这是第一次……”，that从句中谓语动词用现在完成时；since“自从”，从句的时态用一般过去时。故选B。

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