17.
M: Good morning, Ms. Hoe. What's troubling you?
W: I began to have a sore throat and a running nose the day before yesterday. And now, I've started to cough.
Q: What's the woman's problem?
正确答案：B
解析：选项都是She开头，预测对话跟女士的遭遇有关，注意听女士的话语。sore throat“喉咙痛”，running nose“流鼻涕”，cough“咳嗽”，都是感冒的症状。跟事故、外貌无关，故B正确。

18.
M: Would you please help me adjust the air flow? It's blowing right on my head. I'm a bit cold.
W: Sure. Just turn the knob here in whichever direction you like. You can also shut it off by switching it tightly to the right.
Q: What do we learn from the conversation?
正确答案：D
解析：男士嫌冷，让女士帮他调气流量，女士告诉他可以旋转圆形的控制开关，也可以关掉它。D中的air-conditioner是air flow的同义表达，故D正确。