![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
听力原文:W: Excuse me, Professor Hill, may I ask you a few questions? M: Yes, of course, But I'm sorry I have a class to attend. Why don't you come in my office hours, that's 4 to 5 p.m, Monday, Thursday and Friday? Why can't Professor Hill answer her questions now?