A、She had promised that she would. B、She has been sick. C、She needs his approval for her schedule. D、She must verify his plan.

W: Excuse me, Dr. Tyler, your secretary said I should come right in.
M: Please do, Jenny. How can I help you?
W: I need to get your signature on my schedule card here, on the line above advisor’s approval.
M: Sure, but let’s look at it over together first. How many courses do you have here?
W: Six.
M: Six’? That’s quite a heavy load. Any particular reason?
W: I had to drop my chemistry course last semester when I went into the hospital, so I need to take it again.
M: So you’ve already learnt a lot of the material.
W: Right. And calculus is a part of the second requirement.
M: Let’s see, chemistry, calculus. Oh I see you’ 11 be in my seminar on the modern American novel.
W: Yes, I’m looking forward to it and the romantic poetry seminar, too.
M: Two seminars? That is rather a lot. Can you handle the work?
W: I think so. The introductory economics is fairly easy and so is the music course.
M: Well, then I’ll be happy to sign the card. However, I insist that you come to see me after the first week of classes so we can make sure this isn’t too much for you.
W: That’s a promise.
Q. 27. When does this conversation take place?
Q. 28.Why has the woman come to see Dr. Tyler?
Q. 29.Why did the woman drop her chemistry course?
Q. 30.What does Dr. Tyler seem most concerned about?