听力原文：W: Hi. Can I help you？
M: Hi. I've, uh, just opened a checking account and I want to withdraw 150 euros. What I want to know is, who do I make the check out to？
W: Well, since the money is for you yourself, you make it out to cash.
M: OK. W... how do I do that？
W: You just write the word "cash" on this line.
M: This line here？
W: Yes, next to "pay to the order of".
M: OK. C-A-S-H. Now, I want to make this 150 euros. There, howls this？
W: Well, you've written the amount in numbers, but you have to write it out in words, too. That goes on the second line, there.
M: Oh, yeah.
W: By the way, it's a good idea to draw a line from the end of the amount to the word "euros" so nobody can change the amount.
M: Oh, thanks. Well, tlaat should do it. Here you go.
W: You forgot to sign your name. There, in the bottom right corner.
M: Woops, sorry. Here you go.
W: The date.
M: W... huh？
W: The date--you forgot it. It goes in the top right corner.
M: Oh, right. OK, am I done？
W: Yes, That's fifty--a hundred--a hundred and fifty euros.
M: Thanks a lot. Have a good day!
W: You too.
(9)

A bank clerk and customer.
B. Waiter and diner.
C. Professor and student.
D. Manger and secretary.