English for work, interviews, exams, school, travel and everyday conversation — what each goal asks for, and the articles chosen for it.
What counts as good English depends entirely on what you need it for. The vocabulary that gets you through a technical interview is close to useless at passport control, and exam English rewards a precision that would make you sound strange at dinner. Each goal below is a route through the same material, ordered by what that goal actually asks of you first.