may,must,could开头的疑问句怎么回答?请把肯定否定答句分别告诉我,

问题描述:

may,must,could开头的疑问句怎么回答?
请把肯定否定答句分别告诉我,

-May...
-Yes,you may/you can(No,you can't)
-Must...
-Yes,you must(No,you needn't/you don't have to)
-Could...
-Yes,you can(No,you can't)