A、His computer isn’t working. B、He has to study for exams. C、He didn’t understand the assignment. D、He won’t be on campus until

W: Oh, Dan. Come on in. I’ve just graded the midterm exams for your class. You had one of the highest scores. So, what can I do for you?
M: Dr Wilson, I’m really worried about the paper due tomorrow — you know that case study. So far I haven’t done a thing beyond gathering the data, and I have two more midterms tomorrow morning. I was hoping you’d give me an extension till Friday.
W: Well, Dan, when I assigned the paper during the first week of the semester, I emphasised that late papers would be punished. You’re free to turn in your case study late, but I’ll have to lower your grade for it. If I gave you extension, it wouldn’t be fair to the other students. You’re a good writer, Dan. It shouldn’t take that much time to turn your data into a solid report.
M: But I haven’t even made my outline yet, and I’m having a hard time with the computer analysis of the data.
W: It sounds to me like you’re just putting it off.
M: I really am working on it, but I just can’t get it finished and I’ve got to study for two other tests by tomorrow afternoon! But I might be able to get it done after class...maybe...by midnight tomorrow.
W: Hmm…I didn’t specify what time the paper was due. But I’m leaving campus at 4:00 p.m. tomorrow, and they lock this building at 11:00 p.m.
M: Still, if it’s under your door when you get in Thursday morning, you can’t say I turned it in late, right?
W: Right.
Questions 13 to 15 are based on the conversation you have just heard.
13. What does Dan want Dr Wilson to do?
14. What is one reason Dan gives for his problem?
15. What work has Dan already completed on the paper?