who does the old man "depend on"请问depend后为什么不加s
问题描述:
who does the old man "depend on"请问depend后为什么不加s
答
WHO是主语,不加S,只有在第三人称单数时加S
who does the old man "depend on"请问depend后为什么不加s
WHO是主语,不加S,只有在第三人称单数时加S