Now you hear the two long conversations Conversation 1 W: Hello, Cartson College, may I help you? M: Yes. I’m looking for information on courses in computer programming. I would need it for the fall semester. W: Do you want a day or evening course? M: Well, it would have to be an evening course since I work during the day. W: Aha. Have you taken any courses in data processing? M: No. W: Oh! Well, data processing is a course you have to take before you can take computer programming. M: Oh, I see. Well, when is it given? I hope it is not on Thursdays. W: Well, there’s a class that meets on Monday evenings at 7. M: Just once a week? W: Yes. But that’s almost 3 hours from 7 to 9:45. M: Oh! Well, that’s all right, I could manage that. How many weeks does the course last? W: Mm, let me see. 12 weeks. You start the first weekends September and finish…Oh.. just before Christmas, December 21st. M: And how much is the course? W: That’s 300 dollars including the necessary computer time. M: Ah-hum. Okay, Eh, where do I go to register? W: Registration is on the second and third of September between 6 and 9 in Frost Hall. M: Is that the round building behind the parking lot? W: Yes, that’s the one. M: Oh, I know how to get there. Is there anything that I should bring with me? W: No, just your check book. M: Well, thank you so much. W: You’re very welcome. Bye! M: Bye! 根据材料回答第 19～22 题。第 19 题 Why does the man choose to take an evening course?