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 ?