She was exhausted because she ... since eight o'clock that ...

[ Grammar ]

She was exhausted because she … since eight o’clock that morning.

A. had worked

B. had been working

C. has been working

Select your answer:

Random Topics:
Homophone & Homonym Preposition & Gerund Linking Words First Conditional Conditional Sentences Type 1 Countable & Noncountable Nouns Modals and Modal Perfects Direct Object and Indirect Object Subordinate Conjunctions

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A. Consequently

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