问题详情：
—Did you punish him for that?
—Yes，but I don’t think I ________ .
A．should have done so
B．need have done so
C．should do that
D．ought to do that
【回答】
【解析】选A。考查情态动词。从上文和Yes可知，“我”惩罚了他，从but判断“我”认为“我”不该这么做。I don’t think I should have done so. “我认为我不该这么做”。故选A项。
知识点：虚拟语气与情态动词
题型：选择题
