... C 8. B 9. C 10. A11. B. 12. C 13. A 14. B 15. D 16. D 17. B 18. D 19. D 20. C21. B 22. A 23. B 24. B 25. A 26. C 27. B 28. A 29. B 30. D31. A 32. C 33C 34. A 35. B 36. C 37. C 38. A 39. C 40. ... meaningful life and more happily. Perhaps the best (9) _______ to theproblem of energy is a source of clean energy coming from the sun:solar energy. This kind ofenergy is easily available, free, ... 7. valuable 8. preciousness 9. protected 10. snowyVI. Choose the word (a,b, c, or d) that best fits each of the blank spaces1. C 2. D. 3. A 4. B 5. B 6. C 7. A 8. D 9. B 10.BVII. Put one suitable...