听力原文：M: You are my campaign manager, Mary. How do 1 convince members of the student body that I'm the best candidate for school president? W: It won't be easy. M: Thanks a lot. W: I'm just kidding, Smith. Actually I think once we show everyone how well you did as junior class treasurer, you will win easily. M: How do we do that? Meet with all three thousand people who are members of the student body? W: Come on. What Fm thinking of first is hanging campaign posters in all the hall ways where most of the students are sure to see them. M: That sounds good. But everyone puts up posters. What can we do that's different? W: The campus radio station is willing to let you have five minutes tomorrow morning at seven o'clock to outline your plans for the year. Lots of students will be listening, then. M: That's a great idea. W: I've also arranged for you to give a speech during dinner tomorrow. At least five hundred of the students will be there. You'll answer questions after you've finished speaking. M: That means I'd better come up with a speech pretty quickly. How about if I write it tonight and show it to you after chemistry class tomorrow? W: Fine. I'll see you after class. M: Thanks for all your help. To what student body office does the man want to be elected'?