- How could I thank you enough?
- Don't mention it. Any other man that.
A. would do
B. will do
C. would have done
D. must have done
网友回答
A. would do
B. will do
(答案→)C. would have done
D. must have done
解析：考查情景交际和时态。句意：--真不知道该怎样感谢你？--不用客气。（如果）换成其他任何一个人，都会那样做的。根据句意可知，是已经发生了的事情，这里是含蓄条件句，对已经发生的事进行虚拟，主句用would have done。故选C。