Grammar Quiz
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One of _______ most serious environmental problems is _______ pollution.

A. the,zero

B. a,the

C. an,the

D. zero

Select your answer:
A  B  C  D  E 


Random Topics:

Prepositional PhrasesSo or SuchConditionals / Unreal PastPunctuationsModal Auxiliary VerbsSubjective and Objective PronounCoordinating & Subordinating ConjunctionsComparison Degree & GerundsSo / Neither / Either / TooSubjunctive

Other quiz:

Grammar › View

What is the correct spelling of chop + -ed?

A. choped

B. chopped

C. chopt

Passive Voice › View

What is the important rule in Passive Voice?

A. V1

B. V2

C. V3

D. V-ing

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