how often one hears children wishing they were grown-up and old people wishing they were___ again .A.children B.young 这是在别人的问题复制下来的 为什么选b,我知道grown-up作名词加S但为什么要前后一致 how often one hears
问题描述：
how often one hears children wishing they were grown-up and old people wishing they were___ again .
A.children B.young
这是在别人的问题复制下来的
为什么选b,我知道grown-up作名词加S但为什么要前后一致
how often one hears
答
how often one hears 人们不知道听过...多少次了
grown-up这里是形容词,意思是长大的
同样,后面也要用形容词young