1.I'm something that has four legs and only one foot.Who am

1.I'm something that has four legs and only one foot.Who am I'm something that has four legs and only one foot.What am 1.What has four legs and only one foot? which has four legs and only one foot? what has four legs and only one foot? What has four legs(腿) and only one foot(脚)?It's() 四年级孩子的寒假作业,what has four legs and only one foot? It's___. What has four legs,but one foot? a rabbit has one ()and four legs what has four legs but no foot I am something that every living person has seen,but no one what has four legs and one back but can 't walk?(什么东西有四条腿一个背