听力原文：M: Hi, Sally! It's been ages since we met last time. How are you getting along with everything？
W: It's all right! And OK with you？
M: Yeah, but you look a little upset today. Anything wrong？
W: (19) Oh, I've got a problem with my daughter Christina. She's seventeen now. And next year she'll go to college. (20) But all in her mind are only fashions and boys but learning.
M: Sally, it's quite normal for girls of Christina's age to focus on the opposite sex and fashions alike. We used to be young, right？
W: But her grades slipped sharply. Without good grades, you'll never enter a top university. Without college degree, how can you get a job, let alone a good job in the future？
M: Then I think what you need is to sit down and have a talk with her.
W: Talk about what？ She knows everything. Her father gets some money to send her abroad after graduation. Christina is surely clear about that!
M: But even if she will go abroad someday, she has to learn English well anyway, right？
W: That's the headache! (21) I've signed up for a language training session for her already. Anyway, she has to work hard by herself.
M: (22) Why not talk everything with her teacher in school？ It will help!
W: Great idea! I've never thought about that. I'll take it to her teacher tomorrow. Thank you!
M: My pleasure. I did it for my son last time!
Questions:19. Why was Sally upset？
20.What's wrong with Christina？
21.What did Sally do for her daughter's going abroad after graduation？
22.What is the man's suggestion to Sally about her daughter？
(23)

A. She hasn't seen her friend for years.
B. She worries about her friend's health.
C. She worries her daughter's health.
D. She worries about her daughter's study