第5题: [填空题]Environmental awareness had become much more commonplace by ______. 参考答案:the late l960s 答案解析:参见第1个小标题A. Environmentalism in the United States下面的最后一段第1句:By the late l960s environmental awareness
第23题: [单项选择]Why does Susan go to the gym A. His watch. B. His book. C. His glasses. 参考答案:C 答案解析:[听力原文] F: What are you busy doing, Tom M: Oh, I can not find my glasses.