[ 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

Random Topics:
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:
Grammar › ViewTrue or False: We use “There is” when the noun that follows is singular, and we use “There are” when the noun that follows is plural.
A. Yes, it is.
B. No it is not.
Homophones › View
__________ going to celebrate Independence Day in San Jose.
A. There
B. Their
C. They’re
Martha 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
