用need,must和may提问的问句的肯定回答和否定回答分别是什么?

need 提问
肯定回答 yes,主语+need.否定回答no,主语+needn't.
must提问
肯定回答 yes,主语+must (have to )否定回答no,主语+needn't（don't have to ）
may提问
肯定回答 yes,主语+can.否定回答no,主语+can't.

MayMust we hand in our exercise books today? ---- Yes, you must.---- No, you don’t have to / you needn’t. I take this book out of the room? ---- Yes, you can. (No, you can’t / mustn’t. )Need I finish the work today? ---- Yes, you must. / No, you needn’t.