I don't know what exactly it is.这句话对吗?exactly 应放在什么位置?

I don't know what exactly it is.这句话对吗?exactly 应放在什么位置?
I don't know what exactly it is.这句话对吗?exactly 应放在什么位置?

I don't know what exactly it is.这句话对吗?exactly 应放在什么位置?
对的,放心!(*^__^*)

完全没问题！

好象就这样用没有问题。

exactly貌似应该放在what之前