公民的父母持B2签证入境后,要等多久才可以递交移民申请?可以马上申请吗?
-They need to wait for at least 90 days to apply for green card from the day they enter US.
还是等一阵比较好?
还有就是拿到绿卡之前,如何买健康保险?
-They may purchase Obamacare.