Question

uestions 6 and 7 will refer to the following passage that we have read:
That floats on high o'er vales and hills, (1)
When all at once I saw a crowd, A host, of golden daffodils,
Beside the lake, beneath the trees
Fluttering and dancing in the breeze. (4)
Continuous as the stars that shine (5)
And twinkle on the Milky Way,
They stretched in never-ending line
Along the margin of a bay: Ten thousand saw I at a glance
Tossing their heads in sprightly dance. (9)
In lines four and nine, what literary term is being used?