[ Future Perfect Continuous Tense ]
The construction workers … for more than 90 minutes when the bell ring.
A. wouldn’t have been sleeping
B. won’t have been sleeping

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Question TagCorrelative ConjunctionModal SpeculationConditional Sentence Type 3On, At, BySimple and Continuous Present TenseSimiles, Metaphors, Personification and HyperboleComparativeModals of AdvisabilitySubject Verb Agreement and Verb TensesOther quiz:
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