Thanx stochastic,  mech, and  F22. I appreciate your help. mech  My GPA is 2.97  and I think I dont need TOEFL since I did my undergraduate from US university and about GRE I am taking real test soon but the practice test I did from ETS website is I got 780 on MATH and 440 on Verbal. So I dont know I might have to prepare more for Verbal section. Thanx