单选题 John and Mark became separated (分开) because ______. [A] John had to stay in the boat to radio for help [B] John couldn't control (控制) the boat and drifted away [C] There wasn't room for both John and Mark on the buoy
【正确答案】 B
【答案解析】[考点] 推理题 [解析] 从文中第2段倒数两句可知“John 不知道如何使用收音机。他漂流了12个小时没有被发现。”