问题
选择题
I don't think Richard could have done such a stupid thing last night, ________? [ ]
A. do I
B. could he
C. did he
D. has he
答案
答案：C
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I don't think Richard could have done such a stupid thing last night, ________? [ ]
A. do I
B. could he
C. did he
D. has he
答案：C