: Check if the GDZ matches the publication year of your textbook (e.g., 2011 vs. 2022) to avoid discrepancies in exercises.
: Some sites like Scribd offer downloadable versions of the textbooks and workbooks for easy reference. : Check if the GDZ matches the publication
: Practice for Indefinite tenses and verbs not typically used in the Present Continuous (e.g., like, love, want, know ). : Check if the GDZ matches the publication