A、They didn’t know how much each person owed for telephone calls. B、They couldn’t understand each other since they speak differe

M: Hello, Jane.
W: Hi, Peter. How are you? It’s been a long time since I’ve seen you. Don’t you live in the dorm anymore?
M: No, I moved out at the beginning of last semester.
W: Where are you living now.
M: I moved to the Oak Creek apartments. I’m sharing a unit with three other people, one from Brazil, one from Japan, and one from Hong Kong.
W: That sounds interesting. How are you getting along with your roommates?
M: Everything is working out just fine, at least up to now. They all share the cooking and I do the shopping since I have car.
W: I guess that would work out. Yon must have all kinds of foods from different countries.
M: That’s right. I’m really enjoying mealtime! But we’ve had a few other problems.
W: Like what?
M: Well, one was that we got confused when the first month’s telephone bill came.
W: What happened?
M: We couldn’t remember who had called each number, so we didn’t know how much each person owed. Alter a lot of discussion, we each ceded up paying for the calls we were sure of and dividing the rest equally. Now we all jot down the number whenever we make a call, especially the long distance calls, and we have no more telephone problems.
W: Hope it stays that way. I’d love to come over and meet your roommates sometime.
M: OK. How about coming for dinner? I’ll ask them about it and let you know.
W: Great.