| Lesson 13 1. flame 2. flammable 3. ignite 4. ignition 5. precise 6. precision 7. meter 8. metric 9. microscope 10. microscopic 11. grave 12. gravity 13. grateful 14. gratitude 15. revise 16. revision 17. athlete 18. athletic 19. humane 20. humanity |
Lesson 14 1. eruption 2. spectacular 3. abrupt 4. spectator 5. spectacle 6. description 7. specimen 8. interruption 9. subscribe 10. disrupt 11. inspector 12. rupture 13. respect 14. manuscript 15. speculate 16. aspect 17. transcribe 18. inscription 19. suspect 20. bankrupt |
Lesson 15 1. mystery 2. literary 3. treachery 4. theory 5. bravery 6. primary 7. legendary 8. forgery 9. cemetery 10. elementary 11. observatory 12. secretary 13. nursery 14. satisfactory 15. imaginary 16. vocabulary 17. ordinary 18. machinery 19. boundary 20. temporary |
Lesson 16 1. ballet 2. technique 3. fatigue 4. debut 5. petite 6. amateur 7. bouquet 8. massage 9. antique 10. vague 11. portrait 12. boulevard 13. reservoir 14. debris 15. boutique 16. plateau 17. coupon 18. dept 19. plaque 20. crochet |
Lesson 17 1. nucleus 2. nuclei 3. bacterium 4. bacteria 5. analysis 6. analyses 7. diagnosis 8. diagnoses 9. criterion 10. criteria 11. datum 12. data 13. thesis 14. theses 15. fungus 16. fungi 17. oasis 18. oases 19. cactus 20. cacti |