alleryStart learning →With the auxiliary have, must have can refer only to ____.
Aability
Bcertainty
Cobligation
Dpermission
Answer & Solution
Correct answer: B. certainty
Must have refers only to certainty, unlike past obligation expressed otherwise.
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Related questions
Among modals, the only preterite regularly used as an ordinary past tense is ____.If you loved me, you ____ support me.I have ____ able to drive since I was eighteen.I will ____ able to drive if I take ten lessons.It can ____ a surprise.She ____ swim across the lake before breakfast.She ____ rather go herself than send someone else.Back then, I ____ eat early and walk to school.