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I saw a boy ( )when I walked alongthe river.A.to swimming B.to swim C.swimming D.swims

分类: 作业答案 • 2023-01-10 04:17:24

问题描述：

I saw a boy ( )when I walked alongthe river.A.to swimming B.to swim C.swimming D.swims

答

C
see sb. doing sth.
固定句型