听第 8 段材料,回答第 10 至 12 题。 10 . Who is the woman? A . A policewoman. B . A doctor. C . The man's classmate. 11 . What is the man worried about? A . His broken arm. B . The coming exams. C . The wound in his leg. 12 . Where does the conversation probably take place? A . In a classroom. B . In a hospital. C . In the street.