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Review how to use must and have to for obligation and necessity. Practise choosing the right form in everyday and formal situations.
Read a grammar page that helps separate modal meaning from other uses.
Study must, have to, mustn't and don't have to with clear examples.
Watch a short lesson on obligation, necessity and lack of necessity.
Practise must and have to in short everyday sentences.
Review obligation forms in a quick grammar activity.
Practise choosing the correct form in everyday situations.
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