May i ..的肯定和否定回答.举例说明

May i ..的肯定和否定回答.举例说明
May i ..的肯定和否定回答.举例说明

May i ..的肯定和否定回答.举例说明
May I open the door?
Yes,you may.
NO,you can't.

Yes, you can
No , you can not
For instance A:May I smoke here?
B:No You can not

A:May I have a cup of tea?
B:Yes you can