8老师，我先生刚通过EB1申请拿到绿卡，象我这样的配偶申请绿卡提交资料后打概多长时间知道是否批准？
-It is hard to say, case by case. It may take several months or one year.
还有，如果一切正常，多久可拿到绿卡？因为我的签证2017年5月中旬到期，明年1月底生小朋友，我已经在美国5年。如果在签证到期前还没有进展，我应该申请何种签证啊？谢谢！
-Do nothing. You can legally stay in US during the I-485 pending after your I-94 expires. If you want to travel to China during this period of time, you need to apply for advance parole to travel.
