--- Have you finished the report?
--- No. I it all this week.
A. will do
B. had done
C. have been doing
D. have done
网友回答
A. will do
B. had done
(答案→)C. have been doing
D. have done
解析：现在完成进行时表示从过去某时开始一直持续到现在的动作，并且还将持续下去。句意：--你完成你报告了吗？---还没有，我这周一直在做。根据句意故选C.