[ Verb Tense ]
Is the verb tense past perfect, present perfect or future perfect? ‘The biologist has been studying marine life for years.’
A. Past perfect
B. Present perfect
C. Future perfect
D. Present continuous

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Modals of AdvisabilityTypes of Sentence StructureVerb & GrammarTenses and Word FormationGrammar : Must (Necessity)Relative ClausesNoun, Quantifiers and SuffixesDefinite, Indefinite and Zero ArticlesComparatives, Superlatives, and ModalsTime ClauseOther quiz:
Present Continuous › ViewMartha and her brother __________ (run) in the park.
A. are runing
B. is running
C. are running
Coordinating Conjunctions › View
Select the correct coordinating conjunction for the sentence: “He must hurry __ he will miss the bus.”
A. or
B. but
C. for
D. so