A: Excuse me, do you know how to get to Xi’an North Railway Station? B: There is no direct bus. You’d better take the subway. A: Ok. _______________________________. (应该乘坐哪一趟地铁呢?) B: ___________________________________. (你先乘坐地铁一号线到北大街站,换 乘站,然后换成二号线,到西安北客站。) A: Do you know where the nearest subway station is? B: It's over there in front of the supermarket. A: ______________________________. (到北客站大概要多长时间?) B: About half an hour. A: ______________________________. (从这里到站?) B: Nine stops. A: Oh, my god. I have no enough money on my card? B: Don’t worry. You can charge it at the subway. A: That’s great. Thank you very much. B: ________________________. (不客气。)