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🤔 Which of these do we generally use to describe rules set by others? a. Have to b. Must c. Both 📹 Watch the video to find out how to use 'have to' and 'must'. 👨‍🏫 You'll find a summary and more quizzes here: http://www.bbc.co.uk/learningenglish/english/course/eiam/unit-1/session-6 | BBC Learning English