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Prepositions of Time & PlaceTake or PutSentence and FragmentUse of Prepositions or ConjunctionsArgumentative VocabularyConditionalsWish, Unless, If sentenceQuestion Tags in Verb TensesThe First Conditional (if/unless)Verbs - third personOther quiz:
Subject and Verbs Agreement › ViewFifty percent of the milk ____ sold since yesterday morning.
A. was
B. were
C. has been
D. have been
Grammar › View
Up until the mid-18th century, humans only _____ energies that were available on the surface of the earth such as wood and wind.
A. produced
B. depleted
C. exploited
D. promoted