Hi Alaa,

that is not good if she is bred true and supposed to be a guard. You should have seen "something"  by now. Can you share with us the breeder and if she has a website so I can check it out and learn something about the program and lines if any.  I have met many CAOs in the USA and other countries and they are very alert and attentive guardians.  Always wary of strangers and ready to defend.