she didn't pass the exams because she ( ) her lessons well
A wasn't prepared B wasn't been prepared C hadn't prepared D was preparing
人气：442 ℃ 时间：2019-11-02 21:47:39
解答
C she didn't pass the exams 是过去时态,可以推测出she ( ) her lessons well需要过去的过去,也就是过去完成时.
整个句子的意思是：她没有通过考试是因为她为她的课程没有准备好..
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