中科新闻网开票盘丢失怎么办:一道英语选择题
来源：百度文库 编辑：中科新闻网 时间：2024/04/29 17:17:49
If Harry did not attend the conference last night, he _______ too much work to do.
A.must have had
B.must have
C.had had
D.had to have had
选好之后讲理由，谢谢！
A.must have had
B.must have
C.had had
D.had to have had
选好之后讲理由，谢谢！
A肯定的推测,有if 引导的从句,主句用过去时,从句要用现在完成时
选D啊，我是初三的，可这个看的懂，因为have to (had to)是被动做的，（不情愿的）所以选D！
a
B 较好， 简明。
如果Harry昨晚没有参加会议，他一定有很多事情要做。
A
此处用虚拟语气，因为是说话者的猜测！虚拟语气用might/would/must加过去完成式！
译为：如果Harry昨晚没有参加会议，他一定有很多事情要做。
A.是正确答案，是对过去事情的推测。