Level C1. 12 gap-fill multiple-choice items. Exactly two items have two correct answers.

Level C1. Topic: choosing between simple, continuous, perfect, and perfect continuous aspects to show duration, completion, repetition, and relevance in longer contexts.

Level C2. Focus on advanced modality and evidential meaning in natural, context-rich sentences. Exactly two items have two correct answers.

Level C1. Focus on advanced inversion after negative adverbials, especially “Not only . but also”. Exactly two questions have two correct options.

Level C1. 12 questions. Exactly two questions have two correct answers.