第7题: [单项选择]Questions 22 to 25 are based on the conversation you have just heard. A. He is unable to talk. B. He doesn’t like his classroom. C. He can’t find his office key. D. He has misplaced some exams. 参考答案:A 答案解析:[听力原文]22-25 M: Math department, Professor Webster speaking. W: Hello, Prof. Webster. This is J