听力原文：M: York Police Station. Can I help you? W: It's about my daughter, Cathy. She went to school this morning and... M: Just a moment, your name and address, please? W: I'm Helen Brown, 32 Sun Road. M: Thank you, Now Mrs. Brown, what exactly is the matter? W: Well, my little daughter Cathy, left home this morning at about a quarter to nine. Then her teacher telephoned me about an hour ago and asked if Cathy was ill. I said, 'No, why?' And then she said, 'Well, Cathy hasn't come to school yet.' So I said I didn't know where she was. The a I decided to ring you. M: Quite fight, Perhaps she went to visit a friend? Have you asked your neighbors ? W: Yes, I have. You rung all the neighbors and they haven’t seen her, and their children are all at school. M: I see. Now, let's have a few details. How old is Cathy? W: She's eight. M: And what docs she look like? W: She's got fair hair, long fair hair with a ribbon in it, a red ribbon. Er, she's got blue eyes. M: And what's she wearing? W: She's wearing a gray coat and brown shoes, red pants and a red sweater. Yes, that's right. M: We'll do our best to find her, Mrs. Brown. I expect she's just playing truant. Now you keep calm and we'll telephone you as soon as we find her. W: Thank you. Goodbye. M: Goodbye, Mrs. Brown. And try not to worry. Why does the woman make the call?