Hello, I have a problem. I need two auxiliary views of this drawing to show the real diameter of a hole. 

Create a 3D model and extract the 2D views that you need from the model.  Can't that be done in Creo?

I did ! The problem is the auxiliary views

What?  You think the views are incorrect?  I don't see why you would have a problem creating an auxiliary view.  Please explain.

I don't know from where the auxiliary view should be taken in order to have a view showing the real diameter of the hole. I know that I need two auxiliary views to get that one.

Can you export the 3D model in a file type that could be imported by AutoCAD?