— Excuse me, where is Mr. Greens office? — Sorry, I dont know. I here for only a few day

— Excuse me, where is Mr. Green's office?
— Sorry, I don't know. I here for only a few days.
A. work
B. worked
C. have worked
D. will work

A. workB. worked(答案→)C. have workedD. will work解析：句意：打扰一下，格林先生的办公室在哪里？对不起我不知道，我来这里刚刚几天。现在完成时可以用来表示发生在过去某一时刻的,持续到现在的动作（用行为动词表示）或状态（be动词表示）常与for（+时间段）,since（+时间点或过去时的句子）连用. 现在完成时中，非延续性动词不能与for和since引导的表示一段时间的状语连用，通常是用相应的延续性动词来代替，work延续性动词。故选C。

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