第15题: [单项选择]Passage Two Questions 29 to 31 are based on the conversation you have just heard. A. An American protester. B. A 6-year-old Cuban boy. C. A TV cameraman. D. A psychologist. 参考答案:B 答案解析:[听力原文] 29-31 Watching his mother drown and then clinging to an inner tube for two days were p