[ 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

Random Topics:
Past Perfect Simple & ContinuousFuture - will / going to / present continuousMuch, many, a lot of, a few, a littlemust/shouldAdjectives & PrepositionDegrees of ComparisonPast Continues TenseNounsGerund & ParticipleGerund & InfinitiveOther quiz:
Prepositional Phrases › ViewWhat is the prepositional phrase in the sentence?
You should come over after school.
A. after school
B. come over
C. you should
D. school
Grammar › View
______ language do you speak?
A. Who
B. What
C. Where
D. Which
Participle Adjectives › ViewCold, grey weather always makes me feel __________.
A. depressed
B. depressing
Prepotitions › View
married
A. to
B. with
C. of
