do I need to change H4 to F1

I am a H1 holder, and my son has a H4. Next year he is going to college. With H4, he dosen't have to pay out of state tuition in University of Califorina. But he will become 21 years old in less than two years. I have applied for green card and my I-140 has been approved in July, if my I-485 can not be approved before my son turn to 21, what status he will become?
Does he have to change to F1 even we have the I-140 approved, can he still enjoy in-state tuition?
Thank you so much

所有跟帖： 

• 回复： -法居士- ♀ (57 bytes) () 10/10/2003 postreply 00:09:00

• 回复：回复： -gv- ♀ (105 bytes) () 10/10/2003 postreply 00:13:00

• Ｉ－４８５pending. -法居士- ♀ (0 bytes) () 10/10/2003 postreply 00:29:00

• 请参考这篇文章 -法居士- ♀ (54 bytes) () 10/10/2003 postreply 00:35:00

• 回复：Reply -CACSD- ♀ (489 bytes) () 10/10/2003 postreply 08:02:00

• 问题是I485被据了，F1还能有效么？F1不是非移民倾向么？ -Bodd- ♀ (0 bytes) () 10/10/2003 postreply 08:12:00

• 递送了Ｉ４８５后，Ｆ１是否有效？唯Ｈ和Ｌ可与其并存。 -法居士- ♀ (0 bytes) () 10/10/2003 postreply 08:27:00

• 回复：递送了Ｉ４８５后，Ｆ１是否有效？唯Ｈ和Ｌ可与其并存。 -CACSD- ♀ (196 bytes) () 10/10/2003 postreply 09:16:00

• 对，我的意思就是似乎前文作者为孩子的缜密考虑根本无法实现。 -Bodd- ♀ (0 bytes) () 10/10/2003 postreply 09:18:00

• do I need to change H4 to F1 -b2f1- ♀ (351 bytes) () 10/10/2003 postreply 10:27:00