one of后加什么词

one of的几种用法：

1、one of +代词宾格或名词复数。

如：one of them.

one of the students.

2、one of 短语做主语，谓语动词用单数。

One of them is good at math.

of +the+形容词最高级+名词复数。

one of the longest rivers.