My glass shall not persuade me I am old, So long as youth and thou are of one date; But when in thee time's furrows I behold, Then look I death my days should expiate. For all that beauty that doth cover thee, Is but the seemly raiment of my heart, Which in thy breast doth live, as thine in me: How can I then be elder than thou art? O! therefore love, be of thyself so wary As I, not for myself, but for thee will; Bearing thy heart, which I will keep so chary As tender nurse her babe from faring ill. Presume not on thy heart when mine is slain, Thou gav'st me thine not to give back again. —“Sonnet 22,” William Shakespeare Use the sonnet to answer the questions. Which pair of words shows a set of rhyming lines in the first quatrain? Which pair of end words shows a set of rhyming lines in the second quatrain? Which pair of end words identifies the rhyming couplet?