[ Grammar ]
She was exhausted because she … since eight o’clock that morning.
A. had worked
B. had been working
C. has been working

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Degrees of ComparisonAdjectives with PrepositionPreposition and Word FormFinite and Non-Finite VerbModals of Necessity and SuggestionZero ConditionalCorrelative Conjunction & Complex SentencesParticiple Clauses & Cleft SentencesAuxiliary Verbs, if, unless and ModalMixed TensesOther quiz:
Tenses › ViewI will help my neighbor tomorrow.
A. Future Simple
B. Future Continuous
C. Future Perfect Continuous
D. Future Perfect
Grammar › View
. she didn’t pick me up at ___ aiport
A. a
B. the
C. —
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A. Can
B. Could
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Noun, Pronoun, Adjective, Verb › View
Choose the correct sentence with an indefinite pronoun:
A. Everyone were present at the event.
B. Somebody left their bag in the hall.
C. None of the books is missing.
D. Each of them are invited.
