It's still polite to give up your seat to an old man 里为什么要加an呢,可以不加吗?
问题描述：
It's still polite to give up your seat to an old man 里为什么要加an呢,可以不加吗?
答
一定要加
理由, man是可数名词, 前面需要有限定词a, an, the,或his, my ,some
或者用复数
an old man ,the old man,
old men