textbook for grades 8-9 of the RSFSR by Sabatkoev Batyrovich
: Identification of primary and secondary members, such as subjects, predicates, and definitions (opredelenie). domashnjaja rabota po russkomu jazyku 8 klassa sabatkoev
If you are looking for specific solutions to exercises from this textbook, these are commonly found on Russian educational portals: textbook for grades 8-9 of the RSFSR by