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.

Level C2. Focus on nuanced aspect choice, especially perfect, progressive, and simple aspects in time-sensitive narratives, ongoing situations, and backgrounded actions.

Level C2. 12 gap-fill questions. Exactly 3 options per question. Exactly 2 questions have two correct options.

Level C1. 12 multiple-choice gap-fill items. One correct option per item.