[ Tenses ]
Identify the correct past perfect continuous sentence
A. I have been reading this book.
B. She had been waiting for an hour.
C. They will be studying for the exam.
D. We were studying when the power went out.

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IELTS GrammarUnderstanding Product Packaging and TensesAuxiliary WordsVerb BEWish SentenceGrammar-Verbs & Nouns Singular, Plural, GenderNouns as AdjectivesCoherent Sentence with Correct Grammar StructureDirect and Indirect QuestionPast Perfect and Past Perfect Continuous TenseOther quiz:
Modal Verbs in Conditionals › ViewFill in the blank: If they invite us, we ___ go to the party.
A. should
B. will
C. might
D. could
Articles and Determiners › View
____ bikes are not parked properly.
A. That
B. This
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First Conditional › ViewIf she ________ the dinner, He _____ the dishes
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Simple Past Tense › View
Dinosaurs_____ one of the most well known extinct animals, it’s believed their extinction ____ caused by the impact of a meteor and/or multiple volcanic eruptions
A. are – was
B. were – is
C. were -was
D. are – is
