def fill_in_the_blanks(noun, verb, adjective):
    """Fill in the blanks and returns a completed story."""
    story = "I never knew anyone that hadn't {1} at least once in their life, \
except for {2}, old Aunt Polly. She never {1}, not even when that {0} came to \
town.".format(noun, verb, adjective)
    return story