It is the same old story of not being grateful.

题目

It is the same old story of not being grateful.
It is the same old story of not being grateful for what we have until we lose it,of not being conscious of health until we are ill.
(of not being grateful."of"是什么用途的?)

答案

of---介词,(关于)...的又如：a long story of adventure 一个很长的冒险故事of not being grateful for 是介词短语做定语修饰story； what we have 是for的宾语从句；until we lose it 是时间状语从句of not being c...