A、Friends. B、Sister-in-law and brother-in-law. C、Saleswoman and customer. D、Classmates. B推断题。男士打电话说他要找Roger，后来又说他只是想给他的brother打个

W: Roger Plumbing Services. How can I help you?
M: Hi, is Roger there?
W: No, this is his wife Daisy speaking. Actually, he’s out on his lunch break right now. He’s coming back soon. Would you like to leave a message?
M: Oh, hello, Daisy! It’s Frank!
W: Hey! I didn’t recognize your voice at all! Aren’t you in Paris right now?
M: Yes, I’m making a long-distance call from Paris. I just arrived here and I just wanted to call my brother to let him know I’m OK, and to wish him a happy birthday.
W: Well, Roger stepped out a while ago. Should I tell him you’ll call back, or do you want him to call you?
M: He can call me back. I’ll be staying in the same hotel for a few days anyway.
W: Well, if you leave your name and number, I’ll have him call you back as soon as he’s available.
M: Daisy! You already know my name! I’ll just have to give you my number!
W: Oh, sorry! I am so used to saying that, since Roger runs out quite often.
M: That’s OK. Daisy,[20]I forgot to tell you that I want to get Roger a birthday present from France. What do you think I should get?
W: Well, he likes lots of things from France: wine, art, anything of that sort. Wait a second, can I call you back? Something has come up.
M: What’s up?
W: Can we continue this later?[21]My other line is ringing. That must be a customer calling for Roger.
M: That’s fine with me. You don’t have to call me. I’ll give you a ring in an hour. Talk to you later!
W: OK. Bye-bye.
19. What’s the most probable relationship between the man and the woman?
20. What does the man want to know from the woman?
21. Who is probably calling on another line, according to the woman?