Question

Which two pairs of lines in this excerpt from "The Raven" by Edgar Allan Poe best show that the speaker is still haunted by the memories of Lenore?

Answer 1

Are these the lines you were referring to?

1)Then, upon the velvet sinking, I betook myself to linking
Fancy unto fancy, thinking what this ominous bird of yore 

2)This I sat engaged in guessing, but no syllable expressing
To the fowl whose fiery eyes now burned into my bosom's core

3)But whose velvet violet lining with the lamp-light gloating o'er,
She shall press, ah, nevermore

4)Then, methought, the air grew denser, perfumed from an unseen censer
Swung by seraphim whose foot-falls tinkled on the tufted floor

5)Respite—respite and nepenthe from thy memories of Lenore!
Quaff, oh quaff this kind nepenthe, and forget this lost Lenore!"

The answer would then be 3 and 5.

The lines of choice 3 is referring to the velvet violet lining of the cushion where Lenore used to sit. He remembers that Lenore will no longer sit on that cushion again. 

The lines of choice 5 on the other hand refers to the part where he was having delusions. The imaginary smell he supposed was nepenthe, which in mythology was a drink or a potion that helps one forget. He claimed it must be a scent sent by God to help him forget Lenore.