The light is off.He must go to bed,().A doesn't he.B needn't
The light is off.He must go to bed,().A doesn't he.B needn't he
陈述句部分含有情态动词must,表示猜测“一定是,必定”时,简略答句部分于must后面的部分保持一致,不能用mustn‘t ;当must表示“一定要;必须”时,简略问句部分用needn't. 而现在这句话译成:灯灭了,他必须去睡觉了,为什么不用needn't