[ Tenses ]
What tense is used in: I have been studying for three hours?
A. Past perfect tense
B. Present perfect continuous tense
C. Simple present tense
D. Future continuous tense
Select your answer:

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Past Simple, Past Continuous, Past Perfect, Past Perfect ContinuousGrammar and EssayModals of AdvisabilityPronouns ( Interrogative )TOEFLAsking for and Giving OpinionPast Perfect or Past Perfect ContinuousFuture Tenses, Conditionals and ProfessionsHelpful Phrases Transitional Phrases and ConjunctionsOther quiz:
Tenses › ViewI ……………………… my grandparents this afternoon.
A. visit
B. will visit
C. would visit
Grammar › View
A lot of people ___ working.
a. was
b. were
