Now you'll hear the two long conversations.
Conversation One
M: Hi, Sarah. What's up?
W: Oh, hi, I just got out of a history class. I had to give a presentation.
M: How did it go?
W: Terrible. I'm sure I made a fool of myself.
M: Why? Weren't you prepared?
W: No, it was not that. [19]I just get so embarrassed and nervous whenever I have to speak in front of a group of people. I stand up and my face gets red and then I get even more nervous because I know everyone can see me blushing.
M: It's not so bad to blush.
W: But it happens all the time. If the professor asks a question and I know the answer, I blush like crazy if he calls on me. Doesn't that ever happen to you?
M: No, not really. [20]Maybe you should just try to forget about the people. Look at something else in the room like the exit sign.
W: I guess I could try that but I doubt it'll help.
M: You know, we talked about it in psychology class. Blushing, even though it's involuntary, is more or less a learned behavior.
W: What do you mean?
M: [21]Oh, children hardly ever blush at all. And among adults, supposedly, women blush more than men.
W: I wonder why?
M: I don't know, but I have a friend at high school, Brian Smith. It was really easy to make him blush. He turned red whenever a waitress would ask him for his order.
W: I'm not that bad. Well, I've got to get going for my next class. I'll talk to you later.

Questions 19 to 21 are based on the conversation you have just heard.
19. What is the woman's problem?
正确答案：A
解析：四个选项都是描述“她”遇到的问题，听录音时要格外留意女士的话。女士说：“我只要是在人群面前说话就会感觉很尴尬、紧张。”故答案应为A。由对话中多次提到的get/turn red, blush也可猜出正确答案。
20. What does the man advise the woman to do?
正确答案：B
解析：男士说：“或许你应该努力忘记人群。看看房间里面的其他东西，比如出口指示牌。”故答案应选择B。
21. What does the man say about children?
正确答案：D
解析：选项中的They与women, adults进行了比较，故猜测They可能是指小（男）孩，听音时要留意谈到children或boys的句子。男士说：“小孩子们基本不会脸红。”故D正确。