Overhead bridges are found in many parts of big cities, especially in place____ traffic is very heavy and crossing the road is dangerous. The purpose of these bridges____(be) to enable pedestrians to cross roads____(safe). Overhead bridges are used in very much the ____way as Zebra crossings. They are more efficient although____little) convenient because people have to climb up a long flight of steps. This is____(convenient) especially to older people. When pedestrians use an overhead bridge, they do not hold up traffic. However, when they cross a busy road using a zebra crossing, traffic is held up. This is why the government has built many overhead bridges____(help) pedestrians and to keep traffic moving at the same time. For their own safety, pedestrians should be encouraged to use them instead of ____(risk) their lives by dashing across the road. Old people, however, may find it a little difficult climbing up and down the steps, but it is still much safer than walking across the road with all the danger of moving traffic. Overhead bridges serve a very useful purpose. Pedestrians, both old and young, should make____a habit to use them. This will prevent unnecessary accidents and ____(lose) of life.