—Why are you still watching TV? Please go and do your homework.—I it. Can I watch it for

问题补充：

—Why are you still watching TV? Please go and do your homework.

—I it. Can I watch it for another ten minutes?

A. finish

B. finished

C. have finished

D. am finishing

答案：

A. finish

B. finished

(答案→)C. have finished

D. am finishing

解析：句意：——你为什么仍在看电视？请去做你的家庭作业。——我已经做完了。我能再看十分钟吗？根据答语再让我看十分钟可知我已经做完家庭作业了，所以应用现状完成时，故选C。