第3题: [单项选择]We were discussing the housing problem when a middle-aged man cut in and said, "There's no point in talking about impossibilities." A. intersect B. interject C. penetrate D. adulterate 参考答案:B 答案解析:[解析] 本题意为“我们正在讨论住房问题,这时一个中年男子插话了:‘讨论不可能的事情是毫无意义的。”’interject意思是“插嘴”;intersect意思是“相交,交叉”;penetrate意思是