she must be student的 反义疑问句如果是you must do it 那

问题描述:

she must be student的 反义疑问句
如果是you must do it 那

mustn't she be student?
Mustn't you do it?

she must be student,isn't she?
you must do it ,mustn't you?
我问过老师
must be 反义疑问句 是 isn’t
只限 must be~