may i go to play basketball now no ,you ( ) ,you (  )stay at home because my mother

问题描述:

may i go to play basketball now no ,you ( ) ,you (  )stay at home because my mother
is ill Aneedn't ,have to B needn't .must C mustn't .have to D muan't .has to

c为什么要用musn't回答以 may 开头的疑问句有如下表达法:-May I smoke here? 我可以在这儿抽烟吗?-Yes, you may. / Yes, please. 请抽吧。-No, you can't. / No, you mustn't. / No, you'd better not. 请不要抽烟。