请问8老师，我母亲2012年回国（当时有绿卡两年多）照顾老人，现在回美是否重新签证？绿卡是否已作废？有可能保住绿卡吗？万分感谢！
-The green card is void, and cannot be used to enter US. She needs to abandon the green card at any one of the US Consulates in China, and then apply for the B-2 visa at the same time or later to come to US.
I have answered this kind of the questions many times, so you can search my previous responses to the other people.
-The green card is void, and cannot be used to enter US. She needs to abandon the green card at any one of the US Consulates in China, and then apply for the B-2 visa at the same time or later to come to US.
I have answered this kind of the questions many times, so you can search my previous responses to the other people.
