找考题网-背景图
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I came______these photographs while I was sorting some old papers.
A.upon
B.up to
C.out
D.through

A.
A.upon
B.up
B.out
D.through


【参考答案】

A
comeupon'碰到,(偶然)发现';comeupto'达到(高度,程度),符合';comeout'出来,出版,长出,结果是';comethrough'经历,获得成功'。