Most current versions of the Biboletova workbook include "Test Yourself" sections to prepare for school exams. You can find these workbooks and associated answer keys at major retailers or educational platforms like OZON or GDZ.ru.
: Comparing Present Simple vs. Present Continuous and Past Simple vs. Past Continuous . Most current versions of the Biboletova workbook include
: If the GDZ answer differs from yours, look back at the grammar rules in the textbook to understand why . Most current versions of the Biboletova workbook include