[ TOEFL Adjective and Adverb ]
. . . Clean Air Act was a policy enacted in 1963 to regulate air pollution and protect human health and environment.
A. The
B. If the
C. When the
D. Whereby the
Select your answer:
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Simple Present TensePast ParticipleAdverbial Clauses of Reason / CauseTimeIndependent and Dependent ClausesAdjective ClauseFew, a few, little, a littleTypes of PrepositionThe Past SimpleSimple Present - WH QuestionsOther quiz:
Passive Voice - Mixed Tenses › ViewThe room __ every morning.
A. was cleaned
B. is cleaned
C. cleans
D. is cleaning
Subject and Verb Agreement › View
Each of the students _______ responsible for doing his or her work.
A. is
B. are