M: Betty, fancy seeing you here. I didn't know you took the underground. ,F: I don't usually. It's just that I'm fed up with driving and paying so much for gas and the buses are crowded and unreliable, so I thought I'd give this a try. ,M: I know what you mean. I started taking the subway 2 years ago and it's wonderful. Both my home at her office are within easy reach of the stations. When I was driving, I wasn't getting nearly as much exercise.
(A) F: Well, let's get back to work and I'll drive you home afterwards. (B) F: I know! Taking the underground has so many benefits! (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: I guess you are right, but I just love driving to work.
B