I don't think she could have done such a stupid thing yesterday ?A. do IB. could sheC. di

问题补充：

I don think she could have done such a stupid thing yesterday, ?

A. do I

B. could she

C. did she

D. has she

答案：

A. do I

B. could she

(答案→)C. did she

D. has she

解析：考查反意疑问句。根据yesterday可知，could have done是对过去动作的推测，故用过去时；情态动词表示推测，反意疑问句不用情态动词，故答案选C。