听力原文：W: What's the problem？M: I can't figure out how to put the page numbers on. I've

听力原文：W: What's the problem？

M: I can't figure out how to put the page numbers on. I've done everything and they aren't showing up.

W: Let's see. Did you press Shift F8？

M: Yes, I did that. Then I hit P for page and N for number.

W: That's good. Did you type in the page number where you want the numbering to start？

M: Yes. I typed the number 1.

W: Right. Did you press Enter？

M: Yes.

W: How about F7 to return to the document？

M: I did that. But no numbers showed up on the screen.

W: Unhuh. Did you print it？

M: No, I don't want to print it until I see the numbers.

W: Well, that's the problem then. The numbers don't show up on the screen. But they will on the printed copy. Let's try that.

M: Okay. You do it this time, and I'll watch.

W: Well, I'll do it as you want, but it would be better if you let me talk you through it.

M: I don't know.

W: Really. Once you've done it with someone coaching you, it's easier to do it on your own. Don't worry. This is my job.

M: Oh, all right. Shift F8.

W: Now hit P for page and N for number.

M: And the page number I want to start with which is number 1.

W: Great! Just press Enter, then F7 to return to the document, and you're all set to print. Then you'll see those numbers.

(20)

A．The man is learning how to use a computer.

B．The woman is showing the man how to put page numbers on a document.

C．The man is printing a document.

D．The man is using his computer to do mathematical functions.