This foreign scientist______in our college for fifteen years and does not want t

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问题 This foreign scientist______in our college for fifteen years and does not want to leave.

选项 A、worked
B、is working
C、works
D、has been working

答案 D

解析本题考查现在完成进行时的用法。时间状语for fifteen years表示一段时间，应该使用现在完成时或现在完成进行时。要注意根据句意，does not want to leave说明work这一动作一直持续到现在，所以使用现在完成进行时。因此选D。

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