there’s nothing in the bottle ,is there?
陈述部分是"there be"结构的,疑问部分用there省略主语代词.
There is something wrong with your watch,isn't there?
There will not be any trouble,will there?
陈述部分用 no,nothing,nobody,never,few,seldom,hardly,rarely,little等否定含义的词时,疑问部分用肯定含义.