I don't think you have ever heard of him A：have you B：haveen't you C：doyou D:dou't you
问题描述：
I don't think you have ever heard of him A：have you B：haveen't you C：doyou D:dou't you
答
A
这是一个否定转移问题。当主句的主语是第一人称时，宾语从句中谓语动词的否定要转移到主句的谓语上来。而后面的反意疑问句的主语由宾语从句的主语来定，且反意疑问句的谓语用肯定形式。
答
A：have you
像这种带有个人猜测（i think i guess等）直接跳过 think guess 等,看从句.
从句中 have +前面的 not（否定转移到后面从句中）=have not
所以反义疑问要用 （have not） 的反义 have 即 have you（用从句中的主语
懂了吗