I was at home.用at home作特殊疑问句.是where were you还是 where was you

I was at home.用at home作特殊疑问句.是where were you还是 where was you?答案是用were,可是were对应的是are呀?答句是was问句就不是was了吗?因为I am at home.问句是Where are you?所以I was at home.问句是Where were you?