My grandfather, an avid gardener, once wrote to me, “some days you can put off gardning and other days you can’t.” which best fills in the blank? [sic] [i. e.] [mistake]

Which pair of uses of figurative language from “the caged bird” support the extended metaphor of freedom versus oppression? back of the wind; floats downstream his wings are clipped; his feet are tied the caged bird sings; the free bird thinks dawn bright lawn; grave of dreams