He must be in the room.改成反意疑问句怎么改?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/04/29 16:49:18

这道题应该有两个答案
分析:
(1)这个句子可理解为:他必须呆在房间里.
则应改为:He must be in the room,needn't he.
注:在反意疑问句中,must当"必须"讲时,应改为mustn't或needn't.
(2)这个句子亦可理解为:他一定呆在房间里.
则应改为:He must be in the room,isn't he.
注:在反意疑问句中,must当"一定(表推测)将时,应选择must后面的那个单词的正确形式与not缩写,因为这里的主语是"he",所以就填"isn't".
总结:因为"must"有两种意思,所以遇到"must"时,要特别注意它在句中的意思.而在这里,两种意思就讲得通,所以两种填法都可以.

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