回复：你可以这样做:

Sure, you can still write a letter to the US Consulate. Since you invited him for visiting the US, you are the host when he stays in the US. In your letter , you can say something like:

You invited your nephew for a short visit to the US. However, he and his family changed their plan after obtaining B2 visa: now he plans to stay in the US indefinitely with B2 visa. As the inviting party, you have obligation to inform the US consulate about their change and new plan. Ask the US Consulate to reprocess his B-2 visa application.

所有跟帖： 

• If he writes this letter, his nephew might never be able to get -Comfort.- ♀ (54 bytes) () 08/11/2009 postreply 16:01:50

• it is absolutely not true -煤格- ♂ (234 bytes) () 08/11/2009 postreply 16:20:31

• Thanks to Laomao, Merger and everyone here -dansy- ♀ (274 bytes) () 08/11/2009 postreply 19:31:38

• Please see this:公婆带小孙女入境及在美国上学（信息分享 -dansy- ♀ (1427 bytes) () 08/12/2009 postreply 03:46:52