[ Gerund or Infinitive ]
He decided ___________ (study) Biology.
A. study
B. to study
C. studying
Select your answer:

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Simple Present Tense/be/Present ProgessiveTo Infinitive or Bare InfinitiveRelative Clauses and Past PerfectComparison of Adjectives and AdverbsGrammar (want to/ need to/ have to)ConjunctivesTo infinitive - GerundPresent simple or Past simpleIntermediate GrammarArgumentative VocabularyOther quiz:
Basic Grammar › ViewThere is ____ onion.
A. a
B. an
C. some
D. any
Tenses › View
I usually … my bike on weekends. It’s my favorite physical activity.
A. have been riding
B. am riding
C. ride
D. have ridden
