A、Because there is something wrong with the phone line. B、Because his girlfriend is coming. C、Because his boss has come into the

M: Hello, Allen. This is Collin speaking. How are you? And how’s Bob feeling after his holiday?
W: Fine. How about you?
M: Good. I’ve got quite a lot to tell you. I’ve just got engaged! It’s good news for your guys, right? But we haven’t fixed the date yet.
W: What’s she like?
M: Lovely girl! We met on a bus, believe it or not.
W: On the bus?
M: Yes. We just happened to be sitting together and got into the conversation. And we made a date for the same evening, and discovered we’ve got a lot in common, you know, same interests and, we laugh at the same things.
W: I know her?
M: No. You don’t know her. Hmm. At least she doesn’t know you or Bob.
W: When did you meet?
M: Oh, about three weeks ago.
W: It’s soon.
M: Well, yes. It was quite a sudden decision, but I feel really happy. In fact, I’d like you both to meet her. Ok, now, how about a meal together one evening soon? I will be free later.
W: Ok.
M: Would you ask Bob to ring me? Or, ask me to ring Bob? And tell me where shall we meet and tell me where shall we eat. I always feel hungry these days. Oh, I must go now. My boss has just come into the office. In case of my security, I think I must be off now. Talk to you later, ok? Bye.
W: Oh, thanks. Bye.