听力原文:W: Good morning. M: Good morning. What can I do for you? W: I'd like a ticket to Pittsburgh, please. M: Round trip? W: No. One way. M: Okay. That'll be twenty-two dollars. W: Twenty two? last time I took this bus it was only twenty. M: I know. The rates went up this month. W: Just like everything else. M: Yeah. Where does the dialogue take place?