听对话，选答案。 (     ) 1. A. Because he has a lot of money. B. Because the zoo is new. C. Because he wants to help the animals. (     ) 2. A. 50 yuan, a pair. B. 100 yuan, a pair. C. 200 yuan a pair. (     ) 3. A. A dog. B. A goldfish. C. A parrot. (     ) 4. A. To sing for rich children. B. To raise money for poor children. C. To collect money for patients. (     ) 5. A. The rich should help poor children. B. Children should make a living by themselves. C. Government should do something for poor children.