问题补充:
— Excuse me, where is Mr. Greens office?
— Sorry, I don know. I here for only a few days.
A. work
B. worked
C. have worked
D. will work
答案:
A. work
B. worked
(答案→)C. have worked
D. 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。