While cleaning the room yesterday, I _______ an old photo of my mother.
A. came out B. came across C. came about D. came up with
While cleaning the room yesterday, I _______ an old photo of my mother.
A. came out B. came across C. came about D. came up with
B
解析:
试题分析：考查固定词组，came out意思“出现”，came across意思“偶然发现”，came about意思“发生”，came up with意思“想出”，句子意思“昨天当我打扫卫生时，我偶然发现我妈妈以前的照片”，注意when和while的区别：when后跟既可以是短暂性动词又可以是延续性动词；while后只跟延续性动词，所以选B
考点：考查固定词组
点评：固定词组是常考内容，平时要多记多积累，遇到固定词组题时，就很容易做出正确选择