it is 后面加 of the best interest 是什么结构?

题目

it is 后面加 of the best interest 是什么结构?
看托福作文时看到了一句To catch the tide of such changes,it is of the best interest for the young to learn form the open world··· 终觉得应该在of 前面加个one什么的.
from打成form了···

答案

of 加抽象名词 =形容词 it is of the best interest=it is the most interesting 你的句子=To catch the tide of such changes,it is the most interesting for the young to learn from the open world·it是形式主...