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Review modal verbs used for obligation in the past and present. Practise expressing rules, duties and responsibility with more accuracy.
B1ÐB2 grammar lesson on must, have to, donÕt have to and mustnÕt.
B2 explanation covering present and past obligation, prohibition and necessity.
Video lesson explaining how to express necessity and obligation with need to, have to and must.
Interactive practice choosing between mustnÕt and donÕt have to in context.
Multiple-choice practice on obligation, prohibition, necessity and advice.
Focused practice choosing between have to and must in different sentences.
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