听力原文:M: Hello, Meimei. W: Hi, Frank. M: You don't look very well. Do you feel sick? W: No. But I have bad news. M: Really? What is it? W: I failed the maths exam. M: You are very good at maths. How is that? W: I spent a lot of time watching TV and playing computer games. M: Oh, that's too bad. Now you must be very upset. W: Yes, I am. M: I'm sorry to hear that. But don't worry too much. I don't think your teacher will think little of you because of that. Spend more time on maths and you'll get better scores. W: Yes. Thank you. What is the possible relationship between the two speakers?