【正确答案】 D

【答案解析】原文：M: So Patty, are you planning to live on campus this year, or are you going to go for an apartment?W: Well, housing is included in my scholarship, so 1 have to live on campus. The food is lousy, but there are other things I like about living on campus.M: What are the good things about living in a college dorm?W: There’re lots of advantages to live in the dorms. For example, I like studying and hanging out with my floormates. We all go out to parties together.M: Wow, it sounds like the people in your dorm are pretty close.W: Yeah, we really are. I love the dorm because I can make friends that last all through college. How about you, Eric? Are you living on campus?M: Right now I live in an apartment off campus. I didn’t like living on campus because the people in my dorm were always studying, with their doors closed. It wasn’t much fun.W: That’s too bad. It sounds like the people in your dorm weren’t as close as the people in my dorm.M: No, you’re right. Living off campus is OK, but I feel like I miss out on all of the fun stuff that happens on campus.W: Have you ever thought of joining a fraternity? I hear that all the brothers in the fraternity houses are really close.M: Yeah, I’ve thought about joining one. But the fraternity houses are just so dirty! I’m not sure I could take it.题目问为什么卡尔在教幼儿园的孩子时感到沮丧。对话中,男士提到“it was frustrating to be teaching.teaching kindergarten kids and realizing that their reading was much better than mine”由此可见，男士在教幼儿园的孩子时感到沮丧的原因是自己意识到幼儿园孩子的阅读能力比自己好,故选D。