"On the eighteenth of April, in seventy-five; Hardly a man is not alive" (line 3-4).
"Listen my children and you shall hear; of the midnight ride of Paul revere" (Line 1-2)
"Across the moon like a prison bar" (Line 21)
This two lines are rhyme because the sound "ive" is repeated at the end of each line.
Assonance is when two vowel sounds repeat and at he end of both lines one and two the e is repeated in the same sound, therefor this is assonance.
A smile is a comparison using like or as. In line twenty-one the moon is being compared to a prison bar.
In line twenty-five alliteration is used. In the words wanders and watches they same consonant sound is repeated.
"Wanders and Watches" (Line 25)
Moonlight is being compared to a human characteristic, flowing over the whole time and all of the people. Which is why on the fourty-one personification is used.
"And the moonlight flowing over all." (line 41)
Imagery is when you describe something so well, that the readers can see it, or taste, or hear it, they can basically imagine what is going on. In lines 92,93,and 94 describes what Paul is hearing as he walks through the village.
"And the barking of the farmer's dog; And felt the damp of the river fog; That rises after the sun goes down." (Line 92-94)