选择题Must Tina go to the teacher's office right now ?回答No ,she ________.A:mustn't B:can't C:needn't to D:doesn't have to 求大神解答,请说下原因啊

问题描述:

选择题Must Tina go to the teacher's office right now ?回答No ,she ________.
A:mustn't B:can't C:needn't to D:doesn't have to
求大神解答,请说下原因啊