我和孩子的绿卡到明年7月份到期，请问现在申请绿卡延期如何申请？大概需要多长时间？
-You only can file i-90 to renew your green card in advance up to 90 days before your green card expires.
川普如果要暂停移民申请的话，我现在是否是先申请绿卡延期，延期拿到后再申请公民？
-You don't need to extend your green card if you want to apply for the US citizenship. Up to you.
可否先让孩子先申请公民？她已满20岁。-Yes, she can.
谢谢！
