Grammar Quiz

[ Tenses ]

The brain (___) complex functions that help you concentrate.

A. controls

B. is controlling

C. controlled

D. has controlled

Select your answer:
         


Random Topics:

Past Simple Negative & QuestionsDeterminersInfinitive or GerundPerfect Tenses and VocabularyVocabulary, Adjective & PrepositionDefinite, Indefinite and Zero ArticlesConjunctions and PronounsPreposition and ConjunctionSubordinating Conjunctions

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