---Didyoupunishhimforthat?---Yes,butIdon’tthinkI________．A.shouldhaved

---Did you punish him for that?---Yes, but I don’t think I ________．A.should have done soB.need to have done soC.should do thatD.ought have done that

A解析根据句意“你为那事惩罚他了吗？”“罚了，但是我认为我本不该那么做。”分析，此题用should have done本应该做……而实际未做……；B项表示“本来有必要”；C项表示“应该”；D项ought后面应该加to。

这个答案应该是对的