Which middle school are you in?我觉得应该把are you 改成 is your

问题描述:

Which middle school are you in?我觉得应该把are you 改成 is your
因为这句话中middle school是主语

middle school不是主语.
陈述语序的话,这句话应该是 You are in which middle school.
疑问句中疑问的是你在哪所学校,那么按照陈述语序,就会发现,应该是
Which middle school are you in