Nepali_Keta12345, Since you OPT is valid untill end of this year, you are better of trying to place yourself in a Masters Program. If you don't get admitted to any college prior to two months before your legal stay date in U.S., then you can enroll at Kaplan for GRE/GMAT preparation course. But find out before if Kaplan has any course starting around the end day of your grace period expiration date. TTYL