Regular List 1.person 2. nurse 3. dirt 4. nurse 5. birth 6. serve 7. curl 8. curb 9. skirt 10. purse 11. turtle 12. her 13.shirt 14. whole 15. enough | Challenge List 1. perfect 2. nurse 3. thirst 4. swirl 5. surf 6. serve 7. third 8.sharp 9. shirt 10. expert 11. circus 12. purse 13. turtle 14. enough 15. whole |