A：Here's a present for your birthday.
A：Open it and see if you like it.
B：Oh,dear! CD. I'm much of a microphone hog.
A：Miss Smith,here's a letter from your parents.
B：I've been looking forward to it. It's here at last. Thanks a million.
A: That's OK.
A: It's very good of you to show me the way.
B: Please don't mention it.
A：Hope to see you again.
1.Thank you very much.
3.So many thanks!
4.Not at all.
5.Thanks a lot.
6.Not a big deal for that.
7.Thank you again/ever so much.
8.You are welcome.
9.Thanks a million!
10.Don't worry about it.