[ Grammar ]
Juan___________ in the library this morning.
A. Is study
B. Studying
C. Is studying
D. Are studying

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Present Simple with Adverbs of FrequencySimple present/ past/ future tenseMix-TensesIELTS VocabularyComparisonsFuture - Will and Be going toInfinitiveConjunctions and PronounsSentence Fragments and Complete SentencesPast and Future TensesOther quiz:
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A. when
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She ___ 20 years old.
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