<-NARRATOR:->Listen to a conversation between a student and a receptionist at the Registrar's Office on the first day of the semester.
<-FEMALE STUDENT:->Excuse me, I'm supposed to be having my physics class in the science building, but no one's in the classroom.
Could you tell me where the class is? Physics 403 - has it been moved?
<-MALE RECEPTIONIST:->[suggesting] Well, there's a room assignment sheet on the bulletin board outside this office, …[trails off]
<-FEMALE STUDENT:->Yeah, I know, but my class isn't listed there. There must be some kinda mistake or something [worried]. Could you look it up, please?
<-MALE RECEPTIONIST:->Hmmm... ok, let me check on the computer. It's physics, right? [pause] Wait, did you say Physics 403?
<-MALE RECEPTIONIST:->Er... I'm sorry, but it says here that it was cancelled. You should have gotten a letter from the registrar's office about this.
<-FEMALE STUDENT:->What? I've never got it.
<-MALE RECEPTIONIST:->[skeptical] Are you sure? Cuz it says on the computer that the letter was sent out to students a week ago.
<-FEMALE STUDENT:->Really? I should have gotten it by now. I wonder if I threw it away with all the junk mail by mistake.
<-MALE RECEPTIONIST:->[chuckle] Well, it does happen.... Er... let me check something. What's your name?
<-FEMALE STUDENT:->Woodhouse, Laura Woodhouse.
<-MALE RECEPTIONIST:->Ok, hmmm... Woodhouse, let me see... ah, it says here we sent it to your apartment on er... Center Street.
<-FEMALE STUDENT:->Oh, that's my old apartment. I moved out of there a little while ago… [connected with following line for MALE PROFESSOR].
<-MALE RECEPTIONIST:->Well, and I suppose you haven't changed your mailing address at the administration office. Well, that would explain it.
<-FEMALE STUDENT:->[sigh] Yeah, I guess that's it. But how can they cancel the class after offering it? If I'd known this was gonna happen, I would have taken it last semester.
<-MALE RECEPTIONIST:->I know, it's really inconvenient for you, I understand that, but un… if we don't have enough students signed up for the course, the college can't offer it, you know, it's um, a practical issue, like, we can't have an instructor when there’re only a few students in the class.
You see what I mean?
<-FEMALE STUDENT:->I guess, but now I don't know what course I should take instead.
<-MALE RECEPTIONIST:->Ok, let's see. Do you have any courses you're gonna take next semester?
If you do, you might want to take them now and sign up for physics 403 next semester.
<-FEMALE STUDENT:->Yeah, I guess I could do that. I just hope it won't be cancelled again.
Do you know how many people have to be enrolled in order to keep a class from being cancelled?
<-MALE RECEPTIONIST:->Well, it depends on the class, but for that class, you have to have er... let's see, usually it'd be at least ten people, but since it was cancelled this semester, they might even do it with less.
But do you know what you should do?
Give the physics department a call a couple of weeks before the semester starts. They'll be able to tell you if they're planning to go through with it.It's their decision, actually.
<-FEMALE STUDENT:->Oh, ok, I will do that. Thanks for the info.
<-MALE RECEPTIONIST:->No problem. Sorry about the class… [pause] Oh, why don't you go change your mailing address now. It'll only take a minute.
<-FEMALE STUDENT:->Oh, oh, sure, I will do that right away.
学生：Woodhouse, Laura Woodhouse.
Excuse me, uh, I’m supposed to be having my physics class in the science building, but no one’s in the classroom… could you tell me where the class is?
学生明确问道where the class is？也就是B选项的同义替换。A选项，change of address是后来才核对出来的。C选项，direction未提及。D选项，complain的情绪未提及。