hi, i know it was discussed lots of times here.but im still worried about my right options. my birth cert has been lost in my country(russia) recently. i send them the copy with the translation in AOS package, have my interview soon. i dont have my parents alive, only my sister can order a new one and it takes more than 3 months.im wondering if they will be satisfied with the copy only, if not what other options i have.other papaers for the interview are all original except this certificate.