问题描述：
The boy ___ the ball and ____ a man.
A.run to,knocked into B.ran to,knocked upon C.ran for ,knocked into D.ran for,knocked at
选哪个?为什么?请翻译.
A.run to,knocked into B.ran to,knocked upon C.ran for ,knocked into D.ran for,knocked at
选哪个?为什么?请翻译.
问题解答：
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