Grammar Quiz

[ Vocabulary ]

______________ are ways that scientists perform investigations.

A. control

B. experiment

C. scientific methods

D. variable

Select your answer:
         


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Clauses and GerundsTenses - Present and PastSynonymsAdjectives and ArticlesSubject Verb Agreement Irregular VerbPassive Voice and ModalsGrammar Pronoun and Singular Plural NounPRESENT SIMPLE - CHILDRENAdjective + to + Verb

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