[ Grammar ]
We should listen to the experts ______________ have dedicated their lives to studying our planet.
A. whose
B. who
C. which
D. whom
Select your answer:

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Past Modals & Phrasal Modals of ObbligationPresent Simple x Present ContinuousPrepositions after Verbs and AdjectiveComparatives or SuperlativesDefinite and Indefinite ArticlesInfinitivesGerunds as Objects of PrepositionsTransitional WordsGrammar, Conditional Sentences, VocabularyConjunctions & Cohesive DevicesOther quiz:
Conjunctions › ViewI have a Toyota Camry _____ a Nissan Almera in my garage.
A. or
B. and
C. also
D. although
Grammar › View
Perend Trail’s new hiking boots will be available in brown _____ black leather
A. nor
B. yet
C. and
D. so
