问题 选择题

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

答案

答案:B

题目分析:考查固定词组,came out意思“出现”,came across意思“遇然发现”,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

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

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