被动语态和过去分词作后置定语
问题描述：
被动语态和过去分词作后置定语
两种形式都可以翻译成被动句,如何区分何时应该用什么呢?
答
被动语态作后置定语___就成了从句,即定语从句．如,The pen that is used by me is very expensive.过去分词作后置定语___是一个词,即相当一个（后置）形容词．如,
The pen used by me is very expensive.