Don't use words,expression or phrases____only to people with specific knowledge.
问题描述:
Don't use words,expression or phrases____only to people with specific knowledge.
A.being known B.having been known
c.to be known D.known
这个题目的C和D选项怎么区分啊?
关于动词-ed 形式作定语 应该怎么区分?
那A和B选项呢?该怎么区分?
答
空格处缺定语,其中C是谓语动词,而D是非谓语动词.
这句话已经有谓语use了,因此只能选D,你把known改成which is known的定语从句也可以理解的
A是动名词,可以做主语.B只能做状语,表示分词的的动作比谓语动词的动作先发生,有时间上的先后.
你学会非谓语动词就明白了