谢谢！再问

8 老师，

非常感谢！！！再问:

He can get the immigrant vai to enter US to become a green card holder, then apply for reentery permit to stay in China for > one year < two years.

从进入美国到拿到reentery permit这个过程大约多长？是想知道他大概要请多长时间的假。

再次表示感谢！