在帮父母办绿卡填表中，想顺便申请131以防有事必须回国，有几处不知道怎样填写，
1，应该是选applying for an Advance Parole Document对吗？
-Yes.
2，Date of intended departure和expected length of trip怎样填？
-Just select a departure date a couple of months later. The expected length of trip should less than one year, for example 5 to 6 months.
3，Propose of trip怎样写？
-Just put "Visit releatvies and friends in China".
4，How many trips do you intend to use this document怎样写？
-Advance parole is only valid for one year, so you may just select one or two trips.
问题有点多，非常感谢！！
