Which of the following sentences is an example of the past perfect continuous tense?
A. I have studied for the exam.
B. I had been studying for three hours before the exam.
C. I studied for the exam last week.
D. I was studying for the exam.

Random Topics:
Prepositions and ArticlesHabitual and Continuous TensesAdverbs, Infinitives, Definite ArticlePresent simple, Present continuous, Singular, PluralAdverb of TimeRun-On SentencesWH- Question WordsIdiom and TensesTenses & PrepositionPronouns and AdverbsOther quiz:
Perfect Tenses › ViewAll students had just left the classroom when the math teacher came in.
From this sentence, we may conclude that…
A. the students came late for the math class
B. the teacher cancelled the math class
C. the math class started late that day
D. there was no math class that day
Past Tenses › View
It had … me an idea
A. give
B. giving
C. given
Mixed Tenses › ViewI don’t think he ____________in the thirty years I _______________ him.
A. has changed/have known
B. had changed/have known
C. had changed/had known
D. has changed/knew
Grammar › View
Australia is big, but Canada is _________ Australia.
A. big
B. biggest
C. bigger than
