听力原文：W: [19]I'm sorry, but I can't let you check out these books. M: What do you mean? W: [20]Wow, the computer shows you got an overdue book. art work, out since last September. M: But that's impossible. I only started going to this school last month and I'm a business major, not an artist. W: Oh. This is pretty strange. Let me look out the records. OK. You are Richard smith? M: Yeah. W: You live at fifty thirty-three western? M: No, I am living on campus, in the new... W: You did say you are Richard Smith, right? M: Yeah, well, my full name is Richard James Smith, but I usually go by Richard Smith. W: Let me check one more thing on the computer. Aha, I see now. [21]There's another Richard Smith in the class... Richard El Smith. And it looks like he's the one who got the overdue book checked out. M: Another Richard Smith? No kidding. W: So I guess you two never met. M: No, but I think I should probably try. I could at least warn him what's just happened. W: Good idea. Now I'll let you check out these books today. [22]But I suggest you start using your middle name, or mid initial to avoid any problem like this in the future. (23)