听材料,回答1-3题。 1. What does Ann think of being a doctor? A. Easy. B. Difficult. C. Interesting. 2.What does Ann want to be? A. A nurse. B. A doctor. C. A reporter. 3. Which of the following is TRUE? A. Bob's father is a western medicine doctor. B. Li Shizhen is Ann's favorite famous person. C. Bob must learn a lot about herbs if he wants to be a Chinese medicine doctor.