Can my parents, who had 绿卡 before, apply for 旅游签证 to USA?

来源: 于 2006-01-05 09:18:42 [旧帖] [给我悄悄话] 本文已被阅读：次

My parents went back to China four years ago. I would like to have them come back for a few months again. How can I do it. Thanks