249.
W: Hello, Dan. I was sorry to hear that you had an accident last week. How did it happen and how are you feeling now?
M: Well, I was riding on my bicycle along the street when a taxi driver suddenly made a sharp turn in front of me. I could not stop my bicycle in time and I was knocked down. Fortunately, I only got a broken arm and a broken leg. The doctor said that I would have to stay in hospital for at least a week.
W: Do your arm and leg hurt now?
M: Yes, my leg hurts badly, but I can bear the pain. The only thing that I'm worried about is my classes. You know, next week we're going to have our mid-term exams.
W: Well, don't worry about the exams. I can help you.
M: Thank you, but I don't really want to stay here that long. Anyway, thank you for coming to see me.

答案解析：
(1) 正确答案为A。根据classes课程，mid-term exams期中考试，可推知，二人为同学关系，因此A项正确。
(2) 正确答案为B。根据女子劝男子don't worry about the exams不要担心考试，可知，男子担心的是考试，因此B项。
(3) 正确答案为A。根据前面提到医生让他住院一周，及后面男子说but I don't really want to stay here that long.可我确实不想在这里住那么长时间，可推知，对话发生在医院里，因此A项正确。