He was puzzled by this phenomenon. He began to try every approach _________ the best way of working it out.

A. known to find B. knowing to find C. known finding D.knowing finding

题库:高中语文 类型:简答题 时间:2021-01-07 19:58:58 免费下载:《》Word试卷

He was puzzled by this phenomenon. He began to try every approach _________ the best way of working it out.

A. known to find B. knowing to find C. known finding D.knowing finding

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