May I的回答一般用Yes,you can.或No,you can't.
Must I的回答用Yes,you must.或No,you needn't.在考试中No,you needn't考的较多。
Need I的回答用Yes,you need或No,you needn't.
May I的回答一般用Yes,you can.或No,you can't.
Must I的回答用Yes,you must.或No,you needn't.
Need I的回答用Yes,you need或No,you needn't.