I applied for and got an H1-B visa. I have recieved the approval letter however my F1 visa(I-94) expired before my H-1 was approved.As such my status has not been adjusted from F1 to H1. I am told i have to go to my home country and apply to renter the United States. IS there a way I can renew or extend my I-94 so i can adjust my status without leaving the country.