[ Tenses ]
Present Perfect Continuous Tense
How long ___ you ___ for the exam?
A. have, studied
B. have, been studying
C. had, studied
D. had, been studying

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Possessive Adjective and PronounGrammar - Place and MovementPassive VoicePast, Present, FutureGrammar AssessmentConjunctions and PronounsClauses and GerundsPresent Perfect or Past Simple TenseVerb-ing and InfinitiveModals - Reported Speech - ConditionalsOther quiz:
Grammar › View____ I call you after class?
A. Must
B. May
C. Might
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How does a bloodhound’s sense of smell help it find missing persons
A. . declarative
B. ? interrogative
C. . imperative
D. ! exclamatory
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A. must
B. will
C. may not
D. can
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Pasteur _____ in the 19th century.
A. A. was living
B. B. lived
C. C. had lived
D. D. has lived
