回复:紧急: 母亲绿卡面试后回国问题
Her B2 visa will be invalid after her I-485 is approval, so she can not use the b2 visa to come back. However, you can mail the green card to China to your mother after you receive it and she can use the green card to come back.
Her B2 visa will be invalid after her I-485 is approval, so she can not use the b2 visa to come back. However, you can mail the green card to China to your mother after you receive it and she can use the green card to come back.