沒有規(guī)定說反意疑問句中不能出現(xiàn)情態(tài)動詞呀,句中有情態(tài)動詞時,疑問部分一定要出現(xiàn)情態(tài)動詞,除一些特殊的外,如have to
Susan can't drive ,can she 蘇姍不會開車,對嗎?
No ,she can't 是的,
又如
Susan works hard ,doesn't she
Susan doesn't work hard ,does she
祝你假期愉快!加油!不明白再問!難道是我聽錯了- - 比如must have been done 反疑就是用has have 的must be doing反疑是is ..這又怎么解釋。。再有better late than never的反疑是is not it? 也就是說前面的句子不是祈使句 可看成省略句 為its +原句那這個句子也可看成省略句嗎。。暑假不好受喲- -你沒聽錯，有些特殊的
must 表示推測時，反意疑問句用must 后的動詞構成，如Itmust have done, hasn't it ?
He must be happy , isn't he ?