l don't think he could have surfed the Internet last night ,

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/04/29 14:18:52

l don't think he could have surfed the Internet last night ,______?
A.has he B.could he C.did he D.do l

这题选C,当主句后面跟宾语从句时,若主句主语是第一人称则反义疑问句根据从句的主语来反义.could have done 这种表示对过去猜测的句型中,若有过去时的时间状语则反义疑问句就用过去时,若没有,则用现在完成时last night 是很明显的过去时时间状语,所以用过去时.
再问：请问一下，为什么不用could he呢？？请详细说一下！O(∩_∩)O~
再答： could在这里只是表示猜测，没有实际意义，而这里反义问句想问的是他昨天晚上有没有上网，而不是可能不可能，所以是对昨天的行为进行反义，用表示过去时的助动词did

l don't think he could have surfed the Internet last night , I don t think he could have done so much homework last night I don't think he could do such a stupid thing last night,___ 英语专家进!i don't think he could have done so much homework,last 1 I don’t think he could have done so much homework last nig I don’t think he could have done such a stupid thing last ni I don't think he could have done such a stupid thing last ni I don,t think he could have done such a stupid thing last ni 10.I don't think he could have done such a stupid thing last 英语翻译what did you do last night?i surfed the internet.how oft I don't think they could have gathered at the party last nig She surfed on the net last night.