A、Monday and Thursday. B、Monday, Wednesday, and Friday. C、Wednesday and Friday. D、Tuesday and Thursday. A女士介绍经济学课程的上课时间为每周一及周四，故

M: Excuse me, may I come in?
W: Oh yes. How can I help you?
M: I am looking for the Economics Office. I looked for it all over the Arts Faculty Building, but I could only find the School of Accounting and Economic History. Is this the right place?
W: Yes, this is the School of Economics.
M: Oh, great. I am a new student and I’m looking for someone who could give me some advice.
W: Well, I might be able to help. I lecture on that program. What do you want to know about?
M: A few things. First, how many lectures do I have to attend a week?
W: Well, the Economics course is a double unit, so there are two lectures a week and one tutorial. The lectures are scheduled on Monday and Thursday.
M: What time?
W: Let me see... you know this information is all in the handout that you should have received yesterday at the orientation.
M:[23]Oh, I didn’t know about that... no one told me...
W: Never mind. Now, there’s going to be a lecture at four this afternoon.
M:[24]Four’s a bit late. I have a part-time job starting from four thirty.
W: Well, you can’t be in two places at one time, and attendance is necessary. We expect at least 90% attendance at this university.
M: 90%! That’s high. Is it compulsory?
W:[25]Yes, it is. We’re pretty strict about it, actually.
M: And what times have been set down for the tutorials, do you have that information?
W: It’s a well-attended course, so there’s a number of tutorial times. Monday, Wednesday, and Friday, all at 9 a.m. Yours will be allocated at the first lecture.
M: Can I choose the time?
W: Maybe not. You’ll have to talk to Dr. White, the lecturer on the course.
M: OK. Thanks a lot for the information.
22. When are the Economics lectures scheduled?
23. What did the student miss yesterday?
24. Why does the student find the four-o’clock lecture a bit late?
25. What can we learn about the attendance rule?