According to the sentence, the use of repetition adds a suspenseful mood to the poem.
Why does the poem use repetition?
The poem's use of repetitions - namely the tapping, the narrator's calls for Lenore, and the raven's catchphrase of "Nevermore" - contributes to the overall suspenseful, eerie mood.
Raven is the metamorphosis of a tragic love, a favorite symbol of death in many pieces of literature from ancient times
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