Since the 2007 version is an older edition, it is often archived on specialized "Retro" or "Old Edition" sections of educational portals:
Deep dives into parts of speech—specifically Nouns, Adjectives, and Numerals. gdz po russkomu jazyku klass baranov za 2007 god
Sites like GDZ.ru or Skysmart often maintain older exercise databases under a "Previous Editions" or "Other Years" filter. Since the 2007 version is an older edition,