A、Assignment. B、Entertainment. C、Summer vocation. D、Career plans. A主旨题。两位说话者一直围绕oral presentation讨论，这属于他们的学业任务。因此，正确答案为A。

W: Hi, Bob. How is your oral presentation coming along?
M: What oral presentation? I don’ t have to give mine until the end of the next week.
W: You mean you haven’t even started working on it yet?
M: No. I need the pressure of a deadline to get inspired.
W: Gee. I’m just the opposite. I can’t concentrate unless I know I have plenty of time. Besides I have a big physics test next week so I want to get my presentation out of the way.
M: What’ s your presentation on?
W: William Carlos Williams.
M: Wasn’ t he a poet? I thought we were supposed to focus on a short story.
W: He wrote short stories, do you know?
M: Really? I never knew that I guess I’ll learn more on Tuesday. Is that when you are supposed to talk?
W: Uh-huh. But I was going to offer you sneak preview. I’ m looking for someone to tell me whether I’ m talking to fast and whether you can follow what I’ m saying.
M: I guess I could do that. When were you thinking of?
W: Will tonight be all right? I have a class to go to now but I’ll be around after dinner.
M: That sounds good. I’ll stop by your room. It’ s probably quieter there than in my hall.
Questions 1 to 4 are based on the conversation you have just heard.
1. What is the main idea of the conversation?
2. Why does the man not start working on it?
3. What is the woman’ s presentation on?
4. What will they probably do tonight?