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 sentences that best join the sentences below by using an adjective clause with ‘who’.
The man apologized to the police officer.
The police officer listened carefully.
A. The man apologized to the police officer who he listened carefully.
B. The man apologized to the police officer who listened carefully.
C. The man apologized to the police officer but who listened carefully.
D. The man apologized to the police officer and who listened carefully.
Verb Phrases › View
Select the verb phrase from the following sentence:
“The hyper giraffe was not thinking when he lept the fence.”
A. was thinking
B. was not thinking
C. lept the fence
D. when he lept
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
