A、In a travel agency. B、In a post office. C、In the street. D、In a bank. A由对话中提到的tourist guide(导游)和map(地图)知，本对话最有可能在旅行社发生，选A。

M: It’s so hard for me to get to the morning class. But I’m going to fail if I keep skipping, I could hardly keep my eyes open before 10:00 am.
W: Getting early is a nightmare.
Q: What can we know from the conversation?

W: Hello, I’d like a tourist guide, please. How much is that?
M: It’s free. There’s a map inside.
Q: Where is the conversation most probably taking place?