题目

—_______ John this week? —Yes. —Where _______ him? —In the library. A．Did you see; did you see                        B．Have you seen; did you see C．Do you see; have you seen                      D．Have you seen; have you seen 答案：.B 解析: “你本周见John了吗”？强调对现在造成的影响，用现在完成时；“在哪儿见的”强调的为过去的事实，用一般过去时。故选B。

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