15.
M: By the way, may I have my breakfast in my room? I'm not an early riser.
W: Of course, sir. Just ask for room service and they'll see to it that you wake up to enjoy your order any time.
Q: Where does the conversation most probably take place?
正确答案：A
解析：由选项可知本题问地点。抓住关键词room service“客房服务”即可判断出对话发生在宾馆，故A正确。

16.
W: Excuse me, sir. Is it possible to get to the People's Square by bus from here?
M: Yes, but no bus here goes directly to your destination. You have to transfer twice. Why not take the subway instead?It's much less complicated.
Q: What do we learn from the conversation?
正确答案：D
解析：根据选项预测对话与问路有关。注意听建议句型Why not...后的内容，答案中的convenient是对原文less complicated的同义转述。