Solutions also exist for "Verification and Control Works" (Проверочные и контрольные работы) by E.V. Buneeva .
You can find these answers on major educational portals like GDZ.ru and Reshebnik-4klas . gdz 2 klass russkij jazyk r n buneev ev buneeva ov pronina
Identifying stressed and unstressed vowels, and the use of "ь" and "ъ". Solutions also exist for "Verification and Control Works"