I don’t think he could have done such a stupid thing last night,____?A.do I B.could he C.did he D.has he

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I don’t think he could have done such a stupid thing last night,____?A.do I B.could he C.did he D.has he
I don’t think he could have done such a stupid thing last night,____?
A.do I B.could he C.did he D.has he

I don’t think he could have done such a stupid thing last night,____?A.do I B.could he C.did he D.has he
这题是典型题,显然选C.could have done表示猜测,反问时应用过去时.
我建议大家在答题之前先查一查,网上都有,确认一下,对自己也对他人负责.

我不认为他能什么什么，是吗？应该是B吧..三级没过的漂过..

B
由 I don't know引导的从句，要否定转移。就是说这个not要翻译在从句里。
我认为他不可能做那样的傻事。
然后从句是反义疑问句，前面是否定了，后面自然是用肯定。
所以选B

选B 有think等表示看法的宾语从句的反义疑问句提问内容是从句内容
主语有否定所以疑问句用肯定
从句主语是he 动词是could
could he

could he
CD肯定是错的句中有do轮不到did，句中有could,轮不到has
现在翻充地下句子：
我不认为那晚他会做那么傻的事。
我会这么认为吗？ do I? 这明显不合适
could he,他会吗？

选C，因为主语是第一人称引导宾语从句所以反意疑问句看宾语从句的主语，而句子中又有时间状语last night看成是过去的所以选C

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