[ Past Perfect and Past Perfect Continuous Tense ]
Carlos _________ _________ ___________ all day, so he had a headache.
A. had worked
B. was working
C. has been working
D. had been working

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Grammar - Countable/ UncountableTemporal Conjunctions and ConnectivesAdverb and Noun ClausesPresent Perfect SimpleTransitional Phrases and ConjunctionsNoun PhrasesGrammar - help/have/let/makeModals of Obligation & ProhibitionState Verbs and Action Verbsduring, for, whileOther quiz:
Grammar › ViewMy friend _________ English and Math.
A. study
B. studies
C. does study
D. is study
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Find the NOUN in the sentence. Taylor played cars with her only brother.
A. Taylor
B. played
C. with
D. only
Vocabulary › ViewUse scissors to _____ the plastic wrap.
A. coast
B. pierce
C. accuse
Tenses and Time Markers › View
Who (do) the mess on the floor?
A. Who has done
B. Who have done
C. Who do
D. Who has did
