Modals of necessity and obligation | Baamboozle - Baamboozle

Modals of necessity and obligation

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You _________ tell anyone what I just told you. It's a secret.

mustn't - can't

The museum is free. You _________ pay to get in.

don't have to - don't need to - needn't

John's a millionaire. He ________ go to work.

doesn't have to - doesn't need to - needn't

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