He had great difficulty___it .But he didn't give up.A.finish B.finished C.finishing D.to

分类: 作业答案 • 2023-01-08 01:44:53

问题描述：

He had great difficulty___it .But he didn't give up.A.finish B.finished C.finishing D.to
finish .(选择理由?）

答

原因
have difficulty in【in可以省略】 doing
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