C．Yellow.

　　20．Who don't want time to pass quickly?

　　A．Those who are working in a factory.

　　B．Those who are eating in a restaurant.

　　C．Those who are working in a office.

　　听力材料：

　　Text 1

　　M: How do you feel about the English exam today?

　　W: I have never done a more difficult one.

　　Text 2

　　M: Excuse me but do you see a tall man with dark glasses at the bus stop?

　　W: Yes. But he went into the cinema five minutes ago.

　　Text 3

　　W: Jim，you'd better turn down the TV. Your father is sleeping.

　　M: I'm sorry. I thought he had gone out for a walk.

　　Text 4

　　M: Would you mind my opening the window?

　　W: I'm afraid you'd better not. I've caught a bad cold.

　　Text 5

　　M: It's going to rain. I'm afraid I must be off now.

　　W: OK. Remember to come earlier tomorrow. Our work is only half done.

　　Text 6

　　M: Here's your room madam. Um... after you.

　　W: Thank you. Oh，what a nice，large room!

　　M: Yes. All the rooms here are quite large，and the rooms on this side of the building have a lovely view.

　　W: You're right. The view is wonderful.

　　M: There are telephones TV sets and radios and you are free to use them.

　　W: Oh，that's wonderful. Thank you very much.

　　M: If you have some problems，you can call me at any time.

　　W: I see. Thank you for your help.

　　M: It's my pleasure.

　　Text 7

　　W: Hello.

　　M: Hello. Susan this is Jim. I'm calling from the bus stop at Pine Street. I've been searching for your house for about thirty minutes now but I can't find it. I forgot to bring the map you gave me.

　　W: OK. Wait right where you are. I'll come and get you.

　　M: That's not necessary. If you tell me the direction once again，I'll probably be all right this time.

　　W: OK. Can you see a bank on the corner?

　　M: Yes. There is a bank across the street.

　　W: Well cross the street and walk past the shoe shop. My house is the seventh house from the corner on your right.

　　M: OK. Thanks. I'm sure I'll be able to find it this time.

　　Text 8

　　M: Hello，Mona，this is Peter.

W: Hi，Peter. What can I do for you?