V. Supply ...
41. economic
42. encouraged
43. northern
44. freezer
45. servicing
46. presenters
47. unpleasant
48. decision
49. Unfortunately
50. unbelievable
VII. Use the suggestions ...
1. Because of the heavy rain, many students were late for class.
2. He suggested using gas instead of burning coal for cooking.
3. He would rather spend his holidays at a farm than at the seaside.
4. One of the advantages of owning a car is its comfort.
5. She is looking forward to seeing her boyfriend again.
