Use of English

Renewable Progress

Renewable technologies have developed rapidly in recent decades, and many experts believe this trend will (0) CONTINUE in the future. In the past, energy from the sun or wind was often seen as too expensive to (1) .......... on a large scale. However, improvements in design and production have helped to bring costs (2) .......... and make these systems more reliable. Today, governments and private companies are investing heavily in cleaner sources of energy. They are also trying to (3) .......... up with better ways of storing electricity, since solar and wind power depend on weather conditions. One major challenge is to ensure that energy supplies remain (4) .......... even when the sun is not shining or the wind is not blowing. As a result, engineers are carrying (5) .......... research into batteries, smart grids and other solutions. Public support has also played an important (6) .......... in encouraging innovation. Although renewable technologies cannot solve every environmental problem on their own, they are likely to (7) .......... a significant contribution to reducing pollution. In the long (8) .........., they may completely change the way the world produces energy.