Master Pjiang, Abandon green card to get 10 year B2 visa, can yo

My wife's green card would perhaps never sent out, since she is in China as i said in last post.

if you have procedure to abandon CG and get 10 year B  visa, that would be perfect for he travel in  currently situation, Sha cannot hold CG since spend most time in China one year just stay a couple month in  USA. you mention it a little from "收到綠卡了，下一步該做什麽？" can you issue more information ?