Тексты на английском для 8 класса с заданиями для ОГЭ, уровень B1
Expands into Conditional Sentences and more complex verb tenses.
For offline access, platforms like Vse na 5 or educational sections of Archive.org often host scanned versions of the workbooks and Teacher's Books, which contain the keys.
Ensure the GDZ matches the year of your workbook, as "Happy English.ru" has seen several updates in its layout and task numbering.