选择方框中适当的选项补全对话。(每小题2分，共10分)
Mary: Hi, David! I haven’t seen you for many years.    
David: Oh, I have been to London and lived with my parents. They work there.
Mary: I’m very glad to see you again.    
David: Yes, I have. I used to be very quiet.
Mary: That’s true. Wait a minute! Did you use to play the piano?
David:       But now I prefer sports. And I’m on a football team.
Mary: Wow! People always change.
David: You have changed a lot, too.   
Mary: Yeah. But now I prefer long hair.
David: You look more beautiful with long hair.
Mary: Thanks a lot.

A. Yes, I did. B. You used to have short hair. C. Now I’m very outgoing. D.You have changed a lot, haven’t you? E. What have you been doing? F. Where have you been? G. You used to be very shy.