apply citizenship

I and my son got green card in 06/04/2007.permanent, resident since 06/04/2007 in permanent resident card.Right now I want apply govennent jobs, so need become citizen.I want know :1. when do I need to apply ? how to apply? 2. what kind test do I and my son need to take?how to get test example. 3. How much money do I need spend? Thanks.I live in Baltimore, md

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• try to answer -小小巧克力豆- ♀ (272 bytes) () 08/02/2011 postreply 10:26:31