If you consistently miss answers in specific chapters (like Articles or Passive Voice), revisit the theoretical material provided in the textbook.
Ensure you are looking at the 6th edition, as exercise numbers change significantly between versions (like the 4th or 8th editions).
🌟 The answer keys are published as a separate book , so when searching, look specifically for "Ключи к упражнениям" (Keys to Exercises) rather than the textbook itself.