回複：can B1 become J1? Thx!!

Why do you want to change to J1? J1 with a lot of trouble if you want to stay in US, unless you get waiver from China government,or you are very outstanding expert so you can get Uncle Sam's waiver,you evrn can't get greencard or any other status even though marry a US citizen,you haven't go back China and stay there two years then may come back.