thank you (all of you), i found this file : /etc/X11/xorg.conf, and I saw this line:
" Option "XkbLayout" "us" "
I think, we single change "us" <--> "ru" , but i worry that if we log out, then we can't log in, because password will be : Russian (not English as beginning)
Who have methods else better than? (such as Windowns) . For example : use one program???