【答案解析】[听力原文] 1-2 W: Good morning. This is the reception desk of the Garden Hotel. M: Good morning. I booked a single room this Tuesday. But now I'd like to change it for a double one. W: No problem. What's your name. please? M: Jimmy Black. W: OK. Just a moment...Your new room number is 6223. M: Thanks a lot. W: You're welcome.