191.
W: I'm feeling much better now, doctor. Can I stop taking the medicine?
M: Hm... I'm glad you are a little better but you must continue to take the medicine for some days. Starting from today, you may take it three times a day instead of four, OK?
W: All right. Thank you.
答案解析：
正确答案为C。根据you may take it three times a day instead of four. 不用吃四次了，改为一天吃三次药。可知，女子一天吃三次药，因此C项正确。

192.
W: I've planned to go to Washington this afternoon, but I'm too tired to drive and the bus is so uncomfortable.
M: No problem. I'll save you the cost of a taxi by dropping you off at the train station on my way to work.
答案解析：
正确答案为C。I'll save you the cost of a taxi by dropping you off at the train station on my way to work.我会帮你省掉搭出租车的钱，我去上班的时候可以送你到火车站。可推知，男子送女子去车站，因此男子应该是开车，所以C项正确，男子开车上班。