题目内容
【题目】I don’t think he could have done such a thing last night_____?
A. do I B. has he
C. could he D. did he
【答案】D
【解析】考查反义疑问句;反义疑问句遵循“前肯后否”,“前否后肯”的规则,前面用了否定前置“I don’t think he could have done such a thing”,所以后面用肯定语气;又因为这里是对过去的事情的提问,有一个具体的时间“last night”,所以助动词用did,故选D.
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