"GDZ" refers to answer keys used by students to verify their independent work. While controversial, they serve several functional purposes:

Provides templates for writing tasks (emails, essays, reports).

Use answer keys only after attempting all exercises independently.

Allows students to identify specific grammatical errors immediately.

Helps students who may not have access to immediate tutor support. Strategic Recommendations

Focused exercises on word formation, phrasal verbs, and prepositional usage. The Role of "GDZ" (Ready-Made Answers)

The Spotlight 9 Workbook is a robust tool for B1-level proficiency, provided the "GDZ" components are used as a rather than a replacement for cognitive effort.