谁英语好告诉我come from的用发,为什么Amy comes from England的come加s

谁英语好告诉我come from的用发,为什么Amy comes from England的come加s The boy comes from china,为什么come后面加s? he comes from german中come为什么加S he comes from china为什么come要加S they come from england.(用amy代替they) come from england 咖啡用comes from还是come from? come from和comes from的区别和用法, where is tom come from?come为什么不加S come from 还是 comes from jane comes from canada的comes可以换成come吗为什么 l+an+from+England和I+come+from+England的区别