这句英语中的这个单词为什么加ed?
问题描述：
这句英语中的这个单词为什么加ed?
According to sociologists,there are several different ways in which a person may become recognized as the leader of a social group in the United States.
recognized 不用翻译,句子挺简单的,就是为什么recognize加d了?过去时?不对,这不是过去时,为什么?
答
become和be都是系动词,在这里和be后面用法一样,表示“认识到”,be done