I don't know who you are还是who are you?

I don't know who you are还是who are you?
I don't know who you are还是who are you?

I don't know who you are还是who are you?
当然是 I don't know who you are.宾语从句中要用陈述语序,从句中 you 作主语.

是I don't know who you are. 因为know是动词，后面的从句是宾语从句，宾语从句的语序为陈述语序，所以是who you are.

I don't know who you are .
宾语从句中，除了要采用陈述句语序。

前面那个！