英语的!!

I don't know不知道~~~
Very good非常好~~~

You're welcome不客气~~~

1.I don't know
2.very good
3.You're welcome

I don't know.
Very good.
Not at all.
应该是的吧

I don't know或I know nothing
Very good或Wonderful
You're welcome或That is all right

I don't know
Very good / Wonderful
You're welcome /That is all right/It's my pleasure.