—How did you find him out? —I his name by chance on the list.A. came downB. came aboutC.

问题补充：

—How did you find him out? —I his name by chance on the list.

A. came down

B. came about

C. came up

D. came across

答案：

A. came down

B. came about

C. came up

(答案→)D. came across

解析：题考查动词短语的用法。A. came down下来B. came about发生C. came up提出， D. came across遇上，发现，从语境看选D，--你怎么发现他的？--我是偶然在名单上看见他的名字的，选D。