1. You look great today. 2. You're welcome. 3. I'm sorry, it was all my fault. 4. It doesn't matter. 5. May I help you？ 6. Will you do me a favor？ 7. You've been really helpful. 8. Do you mind my smoking？ 9. I'd appreciate if you could turn down the radio a little bit. 10. Call me up sometime，OK？ 11. I'm sorry to hear that. 12. May I bother you for a moment？ 13. Will you excuse us for a while？ 14. Wouldn't you like some coffee？ 15. I'd rather have some tea，if you don't mind. 16. I was wondering what your opinion of this dictionary is.
17. Don't you want to go see a movie？ 18. Would you like to join us？ 19. I'd love to. But I'll have to go to the library tonight. 20. I hate to say this, but I really have to make a complaint.
