[ Past Perfect and Past Perfect Continuous ]
She was exhausted because she (work) since eight o’clock that morning.
A. had worked
B. had been working

Random Topics:
Let & Be allowed toTenses and ConclusionsComplex SentencesTenses - AuxiliariesSubject Verb Agreement and Verb TensesPresent Simple & Present ContinuousTenses (Present, Past, Future Forms)Electricity VocabularyAlthough / DespiteVerb Types and TensesOther quiz:
Grammar - must & have to › ViewThe past tense of must is…
A. musted
B. had to
C. could
Grammar › View
She has been working __________ hard _____________she sleeps only a few hours a day.
A. such/that
B. such/as
C. so/that
D. as/as
Grammar › ViewA stage in the writing process when a written text is prepared for an audience by attending to and correcting mechanics, grammar, and spelling
A. editing
B. writing
C. text
D. grammar
Vocabulary › View
shining; reflecting bright light
A. decade
B. directing
C. engineering
D. gleaming
