Our teachers often tell us that___young must speak to ___old politely.(a/the)
问题描述：
Our teachers often tell us that___young must speak to ___old politely.(a/the)
如追问请回答
答
都填the the +adj表示一类人 the young 年轻人 the old 老人为什么不填the aold是形容词，不能加冠词a