The workbook (Рабочая тетрадь) is structured into four main sections, matching the quarters of the academic year.
This platform offers step-by-step answers for the workbook authored by Biboletova, Babushis, and Snezhko. It is often cited for its lack of errors and ease of navigation.
A useful resource for viewing or downloading the workbooks themselves, which is helpful if you need to reference the original tasks while looking for answers. Tips for Using Online Answers Effectively
While "otvety" (answers) are useful, they are best used as a tool for self-correction rather than simple copying: