[ Grammar ]
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
Select your answer:

Random Topics:
Basic TensesPassive Voice of TensesApostrophes and Quotation MarksUnless If First ConditionalPast Simple - Present PerfectPresent PerfectClausesPassive Voice and ModalsPassive VoicesGerund & InfinitiveOther quiz:
Grammar › ViewThe little children were as happy as – – – – –
A. Dove
B. Lark
C. Dog
D. Mother
Subject-Verb Agreement › View
The quilts that these women made of scraps of silk (was, were) called crazy quilts.
A. Was
B. Were
