谢谢你的回复，我儿子今年12岁，我在美国又结了婚，生了老二，我现在的老公是公民，我是移民拿到的绿卡，我想老大到美国来上学。
-Then, your hu*****and can be the sponsor for your son's immigration visa application and it may take 6 months to one year for your son to get the immigreation visa (green card). But you need to have the cousty right of your son. So, talk to your ex-hu*****and and get the cousty document from the court or the authority organization in China.
