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15. --- That’s very kind of you.

14. --- May I help you?

13. --- I’m sorry he isn’t here right now.

12. --- How long has she/ he worked there…? --- She’s / He’s worked there for… / all her / his life.

11. --- How long have you been at this …? --- For…

10. --- What have you done since…?

9. --- Would you like to have a try? --- I don’t think I can…

8. --- Have you ever been to…? --- I’ve never been there. (None of us has./ Only …h(huán)as. )　

7. --- How long have you been…? --- Since…

6. ---What’s …like ?