—Happy birthday!
— Thank you! It’s the best present I for.
A. should have wished
B. could have wished
C. may have wished
D. must have wished
网友回答
A. should have wished
(答案→)B. could have wished
C. may have wished
D. must have wished
解析：考查情态动词用法。情态动词+have done可以表示对过去的虚拟，也可以表示是对过去所发生事情的推测。Should have done本应该做某事，实际上却未做；could have wished for可以希望得到…；may have done也许做了某事；D一定做了某事；句意：—生日快乐。—谢谢你。这是我可以希望得到的最好的礼物了。故B正确。