翻译I don't think you've heard of him before,have you?

问题描述:

翻译I don't think you've heard of him before,have you?

我不认为你以前听说过他,不是吗

还有比这更简单的吗?
我认为你以前没有听说过她对吗?
否定前置,错不了,初中学的

我不认为你以前听说过他,不是么?

我不认为你以前听说过他,难道不是吗?