how many of you have been to the usa?起什么作用

题目

how many of you have been to the usa?起什么作用

答案

of 意思：“...的,属于”.作用：表示该词前后的从属关系.how many of you 你们中有多少人.One of the legs of the table is broken.桌子的一条腿坏了.Mr.Brown is a friend of mine.布朗先生是我的朋友.Some of us l...