Listen to the dialogue and choose the answer. （听对话，选择正确的答案，对话遍。） (     )1. A. 7845632 (     )2. A. Jane and Tom. (     )3. A. Canada. (     )4. A. Five. (     )5. A. He's a worker. B. 7845362 B. Jane and John. B. Australia. B. Seven. B. He's a schoolboy. C. 7485632 C. Tom and John. C. America. C. Two. C. He's a college student.