小白兔∶加拿大登陆请教

We have to land Canada within two months.Currently my wife and me are in H1B status and my son is H4.My NIW I-140 got approved in 2006 but I-485 is still pending.
I have several questions:
(1) Can I use my current H1B and H4 to go back to USA after landing?
(2) Is my I-485 invalid if I don't use AP to come back?
(3) If needed,can I apply an emergency AP because of Canada landing?

Thank you very much for your help!

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回复:小白兔∶加拿大登陆请教 -xiaobaitu- 给 xiaobaitu 发送悄悄话 xiaobaitu 的博客首页 (22 bytes) () 03/24/2007 postreply 15:20:17

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