―Have you finished your position already?
―Yes. I it in twenty minutes.
A. have finished
B. finished
C. will finish
D. had finished
网友回答
A. have finished
(答案→)B. finished
C. will finish
D. had finished
解析：由答句中的Yes可知in twenty minutes不是表示20分钟后的将来，而是表示在20分钟之内。因为是陈述过去的某个事实，故用一般过去时。