【正确答案】 A

【答案解析】[听力原文]
M: To get from here to the trade show, you"ll need to go downstairs and take the Number 3 line to the City Center Station. Get off at that station and take Exit 4. Look for the free shuttle bus service across the street. It"ll take you to the Conference and Exhibition Center.
W: OK. And how do I get back to my hotel from there? I"m staying at the Downtown Hotel on 5th Avenue.
M: That"s easy to reach. Take the shuttle bus back to City Center Station and get on the Number 6 line. Go five stops to 5th Avenue Station. Your hotel is half a block up from Exit 2. There should be signs in the station pointing the way.
W: Thanks for your help. Can you also tell me how to add more money to my metro card?

选项A正确，女士想要去展览中心看贸易展。选项B错误，提及机场巴士。选项C错误，没有提及参加会议。选项D错误，提及城市中心站而不是加油站。

【正确答案】 C

【答案解析】选项A错误，没有暗示说这是一家餐厅。选项B错误，女士只是询问了如何回到宾馆。选项C正确，男士建议女士乘坐3号线，这可以推断出他们在地铁站。选项D错误，女士想要去看贸易展。

【正确答案】 D

【答案解析】选项A错误，5是从城市中心站到她宾馆的站数。选项B错误，6是地铁线路号码。选项C错误，4号出口是去会展中心的出口。选项D正确，2号出口是正确的出口。