may,can,must,need引导的一般疑问句 - 知识问答

may,can,must,need引导的一般疑问句的肯定回答及否定回答

1个回答

may I do...
Yes,you may.
No,you can't/ mustn't.
Can I do sth?
Yes,you can.
No,you can't.
Must I do sth?
Yes ,you must.
No,you needn't./ No,you don't have to .
Need I do sth?
Yes ,you must.
No,you needn't.

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