Unit 21 -  far, arm, yard, art, jar, bar, barn, bark, card, yarn

Unit 22 -  her, fern, girl, sir, stir, bird, fur, hurt, turn, third

Unit 23 -  look, book, good, hook, brook, took, foot, shook, wood, hood

Unit 24 -  soon, new, noon, zoo, boot, too, moon, blew, soup, you

Unit 25 -  how, now, cow, owl, ouch, house, found, out, gown, town

Unit 26 -  mix, mixed, hop, hopped, hope, hoping, run, running, use, used

Unit 27 -  hard, harder, hardest, fast, faster, fastest, slow, slower, slowest, sooner

Unit 28 -  my, try, sky, fly, by, dry, pie, cried, night, light

Unit 29 -  sad, sadly, slow, slowly, dust, dusty, trick, tricky, help, helpful

Unit 30 -  even, open, begin, baby, tiger, music, paper, zero, table, below