[ Vocabulary ]
He knew that his final exam would require countless hours of _______ study.
A. bystander
B. distraught
C. endeavor
D. irate
E. laborious

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Tenses and Voice-ing / InfinitiveGrammarPoetryPresent Simple: affirmative, negative, interrogativePresent Continuous, Present Perfect and Used to1st & 2nd ConditionalsPresent Perfect and Simple Past TenseVocabullary TestContractions and ConjunctionsOther quiz:
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A. have never played
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I …… watch TV all day as a kid.
A. was able
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We use this tense for plans and intentions that are not fixed yet.
A. future with will
B. future with be going to
C. present simple
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