题目内容
6. ―What on earth are the police busy with?
―They have been looking into how the plane
crash •
A. came out B. came up
C. came down D. came about
6. D考查动词短语辨析。根据语境可知,警察正忙着调查飞机坠毁是怎么发生的。come about发生,产生;come out出现,出版;come up走近,发生,上升,发芽,被提出;come down 下落,流传下来,倒塌。根据题意可知选D
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