Thank you for your reply sdfsdfsdff!
I have few more questions:
1. what does this mean "You must own AP "? I had AP already.
2. what is AOS?
3.what is COS?
4.I had H1B visa already and this time is just H1B extention.
5.I thought we can use H1B status go to Canada for 30 days and do not need the H1B visa to come back to U.S., is it still true?
6. after all the new info for my case (above 1, 4,5 ), do you have new answer for the following question :
"
我的情况是这样：
我的EAD将在11/2008过期。公司正申H1B and H4 (for my child)，还没拿到。
我自己办了加拿大绿卡，还有几个星期必须landing, 否则做废。
我想用H1b and H4 come back to U.S. after landing Canada.
my question is :
#1: which one should I use to re-enter U.S. ? AP or H1B? which one is better in my case?
#2: if I use EAD re-enter U.S. , does this mean that my H1B and my child's H4 will automatically invalid even it is still in process? or EAD and H1B are totally two separeated thing and they do not affect each other?
"
Thanks,