回複：萬分感謝863211, 所以我現在要做的就是盡快去加拿大簽證

然後回來以後什麽也不用做，不用withdraw我05年遞交的485是嗎？
-You do not need to withdraw that I-485.

還有一個可能比較silly的問題，我去加拿大簽證要不要買1個月的往返機票，以免簽證官要看？然後簽過了再改回程？我老公擔心簽證官會問30天內可以用valid的I94回美國為啥還簽證。
-You do not need to do that because it is irrelevant to the visa application and I am sure the visa officer will not ask the kind of questions.