I __________ swim when I was five years old., Could, Couldn't, I __________ find my homework., Could, Couldn't, We __________ see the dog outside the house., Could, Couldn't, We __________ open the door because it was closed., Could, Couldn't, The __________ see the mountain from their window, Could, Couldn't, I __________ understand the question in the test., Could, Couldn't, My grandma __________ cook very well when she was younger., Could, Couldn't, The baby __________ sleep., Could, Couldn't, We __________ play outside., Could, Couldn't, I __________ ride a bike., Could, Couldn't.

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