【正确答案】 C

【答案解析】[解析] 18-20
Man: Hi, Mary. You're in early this morning, aren't you? I thought you usually started at nine.
Woman: Well, I used to, yes. But I've decided to start work one hour earlier every day. That way I don't get stuck in traffic on my way in and when I go home.
Man: I wish I could do the same, but there's no way I can start this early every day. I usually have to drop the kids at school before I get here.
Woman: Well, you'd certainly save some time if you could. I reckon it's reduced my travel time by at least an hour every day.

他们正在讨论在工作日开始工作的最佳时间，所以该对话的主题是工作日程(C)。尽管男士提到送孩子去学校，女士提到交通，但主要话题不是教育(A)、旅行管制(B)或旅行计划(D)。

【正确答案】 B

【答案解析】女士过去从9:00开始工作，但现在每天早工作一小时，即8:00点(B)。选项(C)或选项(D)均不正确。

【正确答案】 A

【答案解析】男士说“l usually have to drop the kids at school before I get here．(在到这儿之前我通常必须把孩子们送到学校。)”，所以男士每天早上都去学校(A)。对话中没有提及去车站(B)或去商店(C)。他每天早上送孩子到学校，而不是接孩子(D)。