英语有哪些固定使用的答谢和道歉以及在人家道歉之后要说的话？

表感谢：i am really appreciated.
thank you.
thanks a lot.
i am very grateful.
道歉：i am sorry.
sorry.
it's my fault.
I apologize.
I feel sorry about that.
my bad.(口语，very informal)
my mistake.
人家道歉后的回答：
it's ok.
that's all right
that's not your fault.
dont feel sorry.
don't worry about it.
that's nothing.
never mind.
don't feel bad