Where was the woman at lunchtime?

Questions 18 to 20 are based on the talk between two students about campus life. You now have 20 seconds to read Questions 18 to 20.
M:Hi, Susan. Where are you at lunchtime? I was saving a seat for you in the cafeteria.
W: Oh, sorry to miss you, but my thirst for knowledge was greater than my pains of hunger.
M:I never had that problem. So where were you?
W:I was in class. My political science class ran overtime.
M:That’s been happening quite a bit lately, hasn’t it? There are some professors who just
don’t know how to show respect for timetable. W: I guess so. Actually, what happens is that a bunch of us hang around for a while after class to talk with our professor and ask him questions.
M:Oh, I see. Your classmates are as knowledge thirsty as you. Who is this twentieth century Socrates?
W: Professor Howl. Have you heard of him?
M:Yes. He does have a good reputation in the political science department.
W:And a well deserved one. The same students who fall asleep in discussion groups and seminars fight for front-row seats in his lectures.
M: Really? Quite unimaginable.
W:It’s great to have a professor who’s not only interesting but prepared to give up time to students as well.
M:I know. They are a rare breed. Maybe I should sit in on his class some time. Do you think he’d care?
W:Not at all. Lots of students bring their friends. He says he feels flattered.
M:Well, just to be safe, I think I’ll bring my lunch along as well.
W:You will become a very good student.
M:You now have 40 seconds to check your answers to Questions 18 to 20.