Which word in the sentence is an object of a preposition? we had fun jumping over the waves. 1 waves 2 jumping 3 fun 4 over

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