听力原文:W: Mr. Smith, did you know it's in fashion to keep a pet dog nowadays? M: Yes, but pet dogs are not easy to find in our country. W: Why not import one? M: Well, if I want to import one, it will have to go into quarantine for six months. W: Go into what? M: A quarrantine. In other words, it must be kept in isolation until the authorities are certain that it is not carrying any diseases. (12)