[ Present Perfect Simple & Present Perfect Continuous ]
The scientist ___ their research yet
A. haven’t finished
B. haven’t been finished

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1st & 2nd ConditionalsPast Narrative TensesPresent Simple and ContinuousNouns, Pronouns, Antecedents, and Singular and PluralPresent and Past TensePassive Voice - Past SimplePast Simple TensesModal Verbs for PossibilityIntermediate GrammarPast or Present Verb TenseOther quiz:
Conjunctions › ViewWhich conjunction would best complete the sentence: “He studied hard, ___ he passed the exam.”
A. or
B. so
C. but
D. since
Grammar › View
If he ___________ this lottery ticket, he would’ve won a lot of money.
A. had bought
B. bought
C. has bought
D. would buy