M: Oh, will he be back this morning? I need to see him today.

　　W: I’m afraid not. Shall I take a message for you?

　　M: OK. Tell him Tom Gamble from CTV 4 wants to talk with him about the video tapes of your company.

　　W: Yes, Mr. Gamble, your surname is spelled...?

　　M: G-a-m-b-1-e, Gamble.

　　W: Ok, Mr. Gamble. And what's your telephone number please?

　　M: He might know it. Well, let him call 4479626, area code, 413.

　　W: 413-4479662

　　M: No, 4479626

　　W: Sorry. 4479626

　　M: Extension 162

　　W: Got it, extension 162.

　　M: Thank you. Do tell him to call back when you see him.

　　W: Sure. Bye Bye.

　　M：Good-bye.

　　Questions 19 to 21 are based on the conversation you have just heard.

　　19. Who made the phone call?

　　20. What is the caller’s telephone number?

　　21. What does the caller want to do?

　　Conversation Two

　　M: Math Department, Doctor Winston speaking.

　　W: Hello, Prof. Winston. This is Eliza Smith calling. I live two doors down from your teaching assistant, David Williams. David asked me to call you because he lost his voice and can't talk to you himself.

　　M: Lost his voice? Oh, what a shame! Is there anything I can do for him?

　　W: Well, he has a class this afternoon from 2:30 to 4:00 and he won't be able to teach it, but he doesn't want to cancel it either.

　　M: Want me to try to find somebody else to teach the class?

　　W: No, not exactly. What he wants to do is to get someone to go in for him, just to pass back the mid-term exams. He's already marked them and they are on the desk in his office. The whole thing wouldn't take more than ten minutes.

　　M: His class is at 2:30, eh? Well at that time I am going to be on campus anyway, so I can do it for him. What room is his class in?

　　W: Building 4, room 214. Will you need his office key to get the exams? He's given it to me and I could bring it to you.

　　M: Actually, that won't be necessary. We have a master key in the math department, so I can get into his office if necessary.

　　W：Thanks very much, Prof. Winston. David doesn't have another class to teach until Tuesday, and hopefully, he will be able to talk by then. He'll call you as soon as he can. Oh, yes, I almost forgot. Could you put the next assignment on the board, too? It's all the problems on Page 45, and they are due at the next class.

　　M: No trouble at all. Thanks for passing all the news about David, and please tell him not to worry about anything.

　　Questions 22 to 25 are based on the conversation you have just heard.

　　22. What's wrong with David?

　　23. What favor does David want someone to do for him?

　　24. What does Eliza offer to do?

　　25. What does Eliza almost forget to ask Professor Winston?