What prevents the man from taking the poets of 1960’s class?

W: Hi, Mark, how is it going?
M: Well, not so great.
W: What’s wrong?
M: I’ve got a big problem with the poetry course that’s required for my major.
W: Is that all filled up?
M: No, no, there’s plenty of room, (4)but there is a prerequisite. I’ve got to take an introduction to poetry before I can take the special course in poets of the 1960s, and the introductory course is only offered in the evening.
W: You don’t like evening classes?
M:(5)No, that’s not the point, I work in the cafeteria every evening, I need the money to pay for my tuition.
W: Can you ask someone at work to switch hours with you? Maybe you could just switch a couple of evenings since the course probably only meets two times a week.
M: I wish I could.(6)My boss just did me a favor by putting me on evenings. And he’ll hit the ceiling if I ask him to change again.
W: Wait a minute. I have an idea.(7)Have you checked the courses over at the community college? They might offer an introductory poetry course during the day.
M: Hey, that’s a great idea, I’m free this afternoon. I think I’ll go over and check it out.
W: Yeah, their courses are actually cheaper, and you can transfer the credits over there.
M: Thanks for the advice, Linda. I’ll let you know what happens.
W: Sure, Mark. Good luck. Oh, while you are there, could you find out when their pool is open?
M: No problem!