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Past Perfect or Past Perfect ContinuousTenses and OpinionsZero and First ConditionalsRelative PronounsModal Verb in Passive VoiceGrammar - Compound SentencesDaily Routines & TensesGrammar and Sentence StructureThe First Conditional SentenceEs and SOther quiz:
Present Perfect Continuous Tense › ViewHow long … properly in the gym?
A. has he been working out
B. have he been working out
Grammar › View
Jeanette did very badly on the exam. She _____ harder.
a. must have studied
b. should have studied
c. could have studied
d. must studied