Most textbooks explain a rule and give you three fill-in-the-blank exercises. The does something different. It uses an "intensive training" methodology:
The book follows the standard "Intensivtrainer" philosophy: it is not a textbook for reading, but a workbook for doing. The structure is logical and user-friendly: langenscheidt grammatik intensivtrainer b2 pdf
Read the completed sentences out loud. Hearing yourself speak advanced structures trains your brain to recognize the "rhythm" of correct German. Most textbooks explain a rule and give you