"Mustn't" means you are allowed to do something., True, False, In the past, the negative of "must" is "mustn't.", True, False, "You have to be at the office at 9 a.m." expresses a past obligation., True, False, "Would you mind telling me where the bank is?" is a polite way to ask for information., True, False, "You need to finish the report by tomorrow" expresses necessity., True, False.

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