Modal Verbs

A sophisticated AI program __ solve complex differential equations faster than any human. - - - A) might, B) can, C) should

Visitors __ smoke inside the hospital, even in the outdoor areas. - - - A) don't have to, B) shouldn't, C) mustn't

The snow is over a meter deep, so it must have been snowing heavily all night. Modal “MUST” signals - - - A) Obligation,   B) Logical Deduction/Certainty, C) Duty

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