Part D. Other information
1. If separate petitions are also being submitted for other relatives, give names of each and relationship.
如何填写?
现在是给父母同时申请,给父亲的表格上是否要写上给母亲申请,-Yes.
如果是, 当然母亲的表格也要写了。 -Yes.
另外,大约一个月前,为姐姐提交了申请,是否也要填上。-Yes. But don't count your sister in your family size in the I-864s for your father and mother at this time because it takes about 10 years for your sister to immigrate to US.