题目内容：

Football is,I suppose,the most popular games in English.用到什么语法

优质解答

Football is,I suppose,the most popular game in English.,I suppose是插入语

追问：

什么时候用插入语

追答：

什么时候都可以，想用就可以，把插入语去掉还是完整的句子Football is the most popular game in English