听力原文：Narrator Now listen to a conversation between two students. Sarah Hi, Bob. Bob Hi, Sarah. Sarah How is your history paper coming? Bob Not so great. Sarah Why? What happened? I thought you were almost finished last night. Bob Well, the paper is written, but it is not typed yet. Sarah Didnt you have time? Bob No. Because all the computers at the computer center are taken. I have no choice, just wait, wait and wait. And it is due this afternoon. I dont know what Im gonna do. Sarah The same thing happened to me a few weeks ago on an economics project. Every time I went to the center, all the computers were being used. And I have a lot of graphs and charts that had to be done on the computer. Because I have to finish my homework on time, I ended up doing them by hand. Bob There are so few computers for all the students here. Sarah Yes , I agree. Bob And they are always breaking down too. Sarah I know. But another problem is that they close so early. Around 9:30. Bob I know. I came back last night at about 9:15 thinking the crowd might have thinned up by then. A guy at the door told me they were going to close in a few minutes. I couldnt believe it! Sarah We should try to do something about this. Bob Ill go along with you on this point. Sarah Why dont we write a letter to the campus newspaper about that problem? Bob I think we should write directly to the dean. You know, we could explain the problem and make an official request that the school add more computers and that the computer rooms stay open longer. Sarah Maybe it would be a good idea to get other students signatures. I am sure a lot of others feel the same way we do. And that would carry more weight. Bob That is true. Do you want to get together to write the letter tonight? Sarah Sure. But I have a study group meeting at 7:30. Bob OK. Lets meet earlier in the dining hall at 6:30. It shouldnt take us long to write. We can start collecting signatures tomorrow at lunch. Sarah See you then. Good luck with your paper. Bob See you. Now get ready to answer the questions. You may use your notes to help you answer. 1. What problem does the man have? 2. What did Sarah have to do in order to finish her economics project? 3. Why will Bob and Sarah write a letter to the dean about the computer center? 4. What are the two main problems about the computer center? 5. What does Sarah mean when she says this? Sarah Maybe it would be a good idea to get other students signatures. I am sure a lot of others feel the same way we do. And that would carry more weight.Narrator Listen to a conversation between two students. Now get ready to answer the questions. You may use your notes to help you answer. What problem does the man have?