7. A. Yes, I think so. B. Very interesting. C. I'm not sure.
8. A. Excuse me. B. Good night. C. I’d love to.
9. A. All right. B. Yes, please. C. You’re welcome.
10. A. Yes, go on, please. B. See you. C. Yes, of course.
11. A. What can I do for you? B. Yes, do it please. C. No problem.
12. A. Yes, please. B. Have a good time. C. That’s kind of you.