应该改为 isn't he? 请看详细解释 陈述部分有must 的疑问句,疑问部分根据实际情况而定。 He must be a doctor, isn't he? You must have studied English for three years, haven't you? / didn't you? He must have f...
当陈述部分must表示“必须”时,疑问部分用mustn't 当陈述部分must表示“有必要”时,疑问部分用needn't 当must表示“一定”“想必”推测意义时,疑问部分不用must,而要根据陈述部分的不定式结构以及含义采用相应的动词形式 例如:You must be hungry,aren't you?...