1. What is said to be the best way to conserve energy nowadays? (A)Raising efficiently. (B)Cutting unnecessary costs. (C) Finding alternative resources (D) Sacrificing some personal comforts.

7. Global residential power consumption can be cut by 43 percent if________. (A)we increase the insulation of walls and water pipes (B)we choose simpler models of electrical appliances (C) we cut down on the use of refrigerators and other white goods (D) we choose the most efficient models of refrigerators and other white goods

1. What is said to be the best way to conserve energy nowadays?
(A)Raising efficiently.
(B)Cutting unnecessary costs.
(C) Finding alternative resources
(D) Sacrificing some personal comforts.

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