If you go into a store and feel that the clerk is being rude, stop and think that she a t

If you go into a store and feel that the clerk is being rude, stop and think that she a tough day, and put yourself in her shoes.
A. may have
B. may have had
C. must have
D. should have had

A. may have(答案→)B. may have hadC. must haveD. should have had解析：考查情态动词+have done的用法：may have done过去有可能做…,should have done本应该做而没做，句意是：如果你进入一家商店，觉得职员很无理，停下来想想，她可能过了很困难的一天，设身处地的为她想想。选B。

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