Give the correct form of the word in brackets. 33. There is a ________________faucet in your kitchen. (drip) 34. We can protect the environment by ________________air pollution. (reduce) 35. I am very ________________because they use electricity to catch fish. (worry) 36. I want to see the ________________of environment from the local authority. (protect) 37. Scientists are looking for an effective way to reduce energy _______________. (consume) 38. They live........................................ in a small village. (happy) 39. You should spend your money and energy as...............as possible. (Economy) 40. You can buy waste.......................made from this factory. (produce) 41. This library is open to all............................................... (read) 42. Air and water are................................ in our life. (necessary) 43. My brother can repair electric.......................... very well. (apply) 44. These..........................will conserve the earth. (innovate) 45. Since the world's energy resources are limited, we must............them. (Conservation) 46. We suggest.......................the light bulb. It is broken. (replacement) 47. To keep the air unpolluted, people ought to use........energy to create electricity. (sun)