Read the following passage and circle the letter A, B, C or D to indicate the correct word that best fits each of the numbered blanks from 26-30
In Western countries, electricity, gas, and water (26)........ not luxuries but necessities. Companies now realize that consumers want products that will not only work effectively but also save money. For most North American households, lighting (27)......... for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an ordinary 100 watt light bulb with an (28)............. bulb. These bulbs use a quarter of the electricity of standard bulbs and last eight times longer. (29)...... , consumers can save about per bulb.
In Europe, there is a labeling scheme for refrigerators, fridges, washing machines and tumble dryers. The label tells the consumers (30)..........energy efficiency each model has, compared with other appliances in the same category.
Number 29……..