[ Grammar ]
The __________ scientist continued his research despite the challenges.
A. passionate
B. determined
C. primitive
D. persistent

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Modals of AdvisabilityAlthough, Though, In spite of, DespiteFuture Perfect vs Future ContinuousModals in the PastModals TensesLinking VerbSubjunctiveTenses PracticeComplex Sentences with Adverb ClausesWho or WhomOther quiz:
Grammar › ViewAustralia _____ by the British.
A. Has been first colonized
B. Is first colonized
C. Was first colonized
D. Has first colonized
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The older he got, __________.
A. the more thoughtful he is
B. the more he is thoughtful
C. the most thoughtful he is
D. the most he is thoughtful
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A. play
B. plays
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Joe practices aikido every day, which is why he _____ win the competition last month.
A. can
B. can’t
C. could
D. couldn’t
