______for weeks ,she could drive the bus.A.To be trained B.Having trained C.To have trained D.Having

题目

______for weeks ,she could drive the bus.A.To be trained B.Having trained C.To have trained D.Having bee trained 为什么选A

答案

答案D
分词短语作原因状语.表被动,完成,用Having been+ 过去分词
A 是不定式,不能作原因状语
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