杭州交通信息网南财红山教务管理系统:english 啦
来源：百度文库 编辑：杭州交通信息网 时间：2024/04/30 10:47:49
must be的反意疑问句是isn't it?
如果must do的反意疑问句是doesn't it吗
如果must do的反意疑问句是doesn't it吗
must当“必须”讲时，must be 和must do的反意疑问句都是mustn't 。例如：
We must study hard, mustn't we？
We must be there at 9 o'clock, mustn't we？
must当“一定”讲时，反意疑问句不是mustn't 。例如：
He must be Mr Smith, isn't he?
This mooncake must have an egg in it, doesn't it?
是哦
must be 和must do的反意疑问句都是mustn't .sb
如We must study hard,mustn't we?
You must be a good student,mustn't you?
搞这行的岂能有错？？
正确