[ Past Tenses ]
Which sentence has a correct example of the past perfect progressive tense?
A. They have been playing tennis all day.
B. They had played tennis all day.
C. They will have been playing tennis all day long.
D. They had been playing tennis all day.

Random Topics:
Modal Verbs & Time PrepositionsPreposition of TimeSo....that... Such.......thatPresent tense AffirmativePoetryRelative Clauses and Past PerfectDeterminers & QuantifiersFirst & Second ConditionalPresent Tenses and VocabularyIntermediateOther quiz:
Grammar › ViewChoose the uncountable nouns
A. homework
B. job
C. task
D. project
Modal Verbs › View
How ___ you ___ if you sprain your ankle?
A. will/do
B. can/do
C. should/do
Grammar › ViewThe Tonight Show always make us feel … .
A. amazing
B. amazed
Conjunctions › View
John has a bike, _____ he hasn’t got a car.
A. and
B. but
