[ Tenses ]
Which sentence best emphasizes the *duration* of the activity before it was stopped?
A. When it started raining, they had played two games of tennis.
B. When it started raining, they had been playing tennis for an hour.
C. When it started raining, they played tennis.
D. When it started raining, they were playing tennis.
Select your answer:

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Past Tenses › ViewWhile I (clean) the house, I (find) an old photograph.
A. I had cleaned – I found
B. I cleaned – I found
C. I was cleaning – I found
D. I was cleaning, I finded
Phrases › View
Identify how the underlined gerund is being used in the sentence.
For most birds, flying is a way to escape predators.
A. subject
B. object of the preposition
C. direct object
D. predicate noun
