Which pair of lines in william shakespeare's sonnet 116 uses slant rhyme?

(a) let me not to the marriage of true winds

(b) admit impediments. love is not love

(c) which alters when it alteration finds

(d) or bends with the remover to remove

(e) love's not time's fool, though rosy lips and cheeks

(f) love alters not with his brief hours and weeks

B and D

Explanation:

Lines A and C use perfect rhyme (minds - finds), and so do lines E and F (cheeks - weeks).

The rhyme in the pair of lines B, D is formed by words with similar but not identical sounds. In the words love and remove, the final consonants are identical but the vowels sound different. That is why this type of rhyme is called slant thyme, or half rhyme.  

b b b b b b   b b b   b b b b b

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