[ Gerund vs Infinitive ]
Sam had to stop ________ football because he had injured his knee earlier.
A. to play
B. playing
Select your answer:

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Grammar › View________ Nile is the longest river in the world.
A. the
B. an
C. a
D. zero article
Do not- Does not › View
She ___________ snakes
A. touch
B. touches
