The Groza/Dvoreckaya GDZ is an It is best used as a "hint" when you are genuinely stuck or as a final check after you have completed your homework independently.

: When used responsibly, it allows students to check their work immediately, which can reinforce correct patterns before they become habits. Weaknesses

: For standard grammar and vocabulary exercises, the GDZ is generally highly accurate, reflecting the specific requirements of the New Millennium English curriculum.

: Some online versions of the GDZ correspond to older editions of the textbooks. Since Groza and Dvoreckaya's books are updated periodically, the numbering or content of exercises may occasionally mismatch.