宾语从句的反义疑问句到底看前面还是后面啊？

楼上说的不全面，如：i think that you are a good student.don't you?
he said that you are a good student,didn't you?
the girl who is over there is my sister,isn't she?
由上可见，定语从句根据主句来作反意疑问句，宾语从句，如果引导词是think purpose believe等，看从句，其它的一般用don't +主语（注意时态）。希望对你有帮助！

一般都看前面，但如果是定语从句，I think宾语从句就看后面…

看后面半句，也就是句子的“尾巴”！

前面，如果是定语从句就看后面…