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高一英语选择()theteacher'spermission,thestudentswenttotheplaygroundtoplaybasketball.A.UnderB.WithC.WithinD.For为什么不选A

题目详情
高一英语选择
( )the teacher 's permission ,the students went to the playground to play basketball.
A.Under B.With C.Within D.For
为什么不选A
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答案和解析
这是固定词组,with one's permission,在某人的允许下
under的词组有under one's help