单选题 .  Questions 9 to 12 are based on the conversation you have just heard.
1. 
【正确答案】 D
【答案解析】[听力原文]
   M: Hi, Sarah! What's up?
   W: Hi! I just got out of my English class. I have given a presentation.
   M: How did it go?
   W: Terrible. I'm sure I made a fool of myself.
   M: Why? Didn't you prepare for it?
   W: Well, I really put a lot of work into it. I'm so easy to get nervous whenever I have to speak in front of the class.
   M: It's not too bad to be nervous.
   W: But it happens all the time. Didn't that ever happen to you?
   M: No, not always. Maybe you should just try to forget about the people. You can look at something else in the room, like the window or pictures on the wall.
   W: I guess I should try that, but I don't know whether it will help.
   M: Well, being nervous is more or less a learned behavior.
   W: What do you mean?
   M: Oh, we talked about it in psychology class. Children rarely become nervous. And among adults, women becomes nervous more than men.
   What is the most probable relationship between the two speakers?