who are your teacher?哪里错了?
问题描述：
who are your teacher?哪里错了?
快
答
不能用are 因为your在这里不是主语 是形容词 修饰teacher的 你的老师
变成陈述句 Mr Li is your teacher.
对Mr Li 提问 就变成who is your teacher?主语是Mr Li 谓语动词应该用单三……
who are your teachers 复数 许多老师 谓语当然用复数了……