17.
M: Hello, Tracy. How come you're sweating on such a cold day?
W: Sorry I'm late for the meeting. Just after I passed through the supermarket, my car broke down. So I decided to rush all the way here.
Q: What do we learn about the woman?
正确答案：B
解析：男士疑惑女士怎么会在大冷天满头大汗，女士解释说车在超市附近抛锚了，不得不一路跑过来开会，故选B。

18.
W: I used to go to the cinema a lot, but once in a blue moon now.
M: Me too. The contemporary movies are incomparable to those made in my youth.
Q: What do we learn about the two speakers?
正确答案：A
解析：女士说自己以前常去看电影，现在难得去一次，男士说“我也是”，因此答案为A。即使听不懂女士话语中once in a blue moon“千载难逢”的意思，也应该根据but一词猜出它的意思与前面的go to the cinema a lot相反。