I don’t think he could have done such a stupid thing last night ?A. did heB. could he C.

问题补充：

I don’t think he could have done such a stupid thing last night, ?

A. did he

B. could he

C. do I

D. hasn’t he

答案：

(答案→)A. did he

B. could he

C. do I

D. hasn’t he

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