反义疑问句:Someone is running after me,___ ___?

Someone is running after me,【isn't it】?
如果不明白,请再问；如果对你有所帮助,
请点击本页面中的“选为满意回答”按钮,我也是这么想，但答案上是aren't they额....someone 明显是一个单数代词这是我在有道词典里找的的例句：If someone hurts you in some way, or says something you do not like, what do you do?明显反映了someone是单数，怎么可能？？？因为我能力有限，只能帮你到这里了，具体情况我建议你还是问问你的老师~~