听力原文：M: Hi, Sarah. What's up？W: Oh, hi, I just got out of a history class. I had to gi

听力原文：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. (23) 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 will blush like crazy if he calls on me. Doesn't that ever happen to you？

M: No, not really. (24)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 this in psychology class. (25)Blushing, even though it's involuntary, is more or less a learned behavior.

W: What do you mean？

M: (25)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 had a friend in 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.

(20)

A．She felt embarrassed in class.

B．Her presentation received a poor grade.

C．She had not completed her assignment.

D．She was unable to attend her psychology class.