Level C1. Topic: complex determiners and quantifiers in formal and natural contexts. Exactly 12 questions, 3 options each.

Level C2. Focus on advanced reporting frames for summarising, attributing, and distancing information in formal and informal contexts.

Level C1. 12 gap-fill questions. Exactly 2 questions have two correct options.

Level C1. Topic: tricky zero article in advanced use, including institutions, meals, languages, abstract nouns, and set phrases.