答案：填runs with 即：Alan often runs with his father. 解析：这句话时态是一般现在时,主语是第三人称单数,所以谓语动词也要用三单形式,即runs,with表示和...,作伴随状语 希望能帮到你,祝更上一层楼O(∩_∩)O有...吃饭不要太快。这对你的身体没有好处，Don`t _____ too______.it`s not __________your health.Don't eat too fast. It's not good for your health. 依次填 eat, fast, good for