Answer:
William Blake uses imagery to express the feelings and memories of a young chimney sweep, whose perspective the poem is told from.
Step-by-step explanation:
The parts that are in bold font are the lines that use imagery.
"There's little Tom Dacre, who cried when his head
That curled like a lamb's back, was shaved, so I said,
"Hush, Tom! never mind it, for when your head's bare,
You know that the soot cannot spoil your white hair.'"
"Were all of them locked up in coffins of black;"
"Then down a green plain, leaping, laughing they run,
And wash in a river and shine in the Sun."