This document provides an overview of advanced grammar, vocabulary topics, and language functions covered in a C1-level English course. It includes grammatical structures like the present and past habit, question tags, and future perfect. It also covers vocabulary related to work, transport, crime, relationships, festivals, sport, geography, and banking. Key language functions covered are giving opinions, summarizing, expressing regret, drawing conclusions, making offers, describing cause and effect, stating purpose, emphasizing, stating contrast, adding information, congratulating, commiserating, and clarifying.