[ Past Perfect and Past Perfect Continuous ]
Which of the following is a sentence in “Past Perfect Continuous”?
A. Had you been waiting long before Uber arrived?
B. Have you been waiting long before the Uber arrived?
C. Did you wait the Uber?
D. Are you waiting the Uber to arrive?

Random Topics:
Will & Be going toPassive to ActiveContinuous TensesFrequencyActive & PassivePresent Tense vs Present ContinuousFuture FormsKinds of NounsFamily Vocabulary and GrammarGrammar, Literature, and VocabularyOther quiz:
Grammar › ViewMy hands are very dirty. I ………… my bike.
A. was repairing
B. have been repairing
C. am repairing
D. had been repairing
Grammar › View
Technology is an integral part of our society and ____ major contributor towards education.
A. a
B. an
C. the
D. no article
Modals and Responsibilities › ViewShe is ___ taking care of the pet.
A. must
B. need to
C. have to
D. responsible for
Grammar › View
If I clean up my room now, my parents _____ be mad at me later.
A. didn’t
B. won’t
C. will
D. can
