[ Past Tenses ]
He was exhausted because he ___ without a break for six consecutive hours.
A. was working
B. had worked
C. had been working
D. worked

Random Topics:
Verb Tense, Pronouns and AntecedentsSimple present/ past/ future tenseHelping and Linking VerbsPossessive Adjective and PronounNoun / PronounFuture or PastModal Verb Gerund or To InfinitiveNouns - Word Form-IONGrammar - Wh QuestionsTransition WordsOther quiz:
Grammar › ViewIt’s the most important time that she ____ the textbook she had been assigned to prepare for the university.
A. complete
B. completes
C. had completed
D. completed
Tenses › View
At 6 p.m. yesterday it _____ dark.
A. already got
B. was already getting
Grammar › ViewMy sister and I baked the cheese cake………………
A. himself
B. ourselves
C. yourselves
D. themselves
Grammar › View
_____ girls are collecting _____ old newspaper for their Science project.
A. The / an
B. An / the
C. The / the
D. An / the
