Ex 9: 1. Sustainability will be a key consideration in urban planning and development. 2. Private vehicles will be replaced by more efficient and sustainable public transport systems. 3. There will be electric buses, trains, and trams that produce no or low emissions. 4. The paintings are on display at an exhibition which opened on Friday. 5. Environmentalists say there is a high risk of pollution from the landfill site. 6. The disease spread quickly among the poor slum dwellers of the city. 7. The industry needs to look for technological solutions to their problems. 8. Children need to be able to communicate ideas effectively to have a good job in the future. 9. Traffic is now flowing smoothly again with the computer-controlled system. 10. The government has been praised for improving the economy. 11. The exhibition has attracted special attention from the media. 12. It will become a safer and more livable residential area. 13. The town's modern architecture is very attractive to the young. 14. The rapid growth of population led to an acute shortage of housing. 15. Sensors can inform waste collection teams when the bins are full. 16. Computer-controlled transport systems like electric buses and trains will produce less greenhouse gas emissions. 17. In the future, cities will only use renewable sources of energy such as wind and solar power. 18. Cameras and sensors are used to improve city dwellers' safety and security. 19. There seems to be a lack of certainty over what we should do. 20. These children may need careful, medical check-ups that include special tests for early signs of cancer. 21. Patients can receive prescriptions and other documents online. 22. The app can give city dwellers route recommendations when they cycle through the city streets. Ex 10: 1. These high-rise apartment blocks will be built to solve housing problem. 2. Smart devices help cities operate more efficiently. 3. The road was closed while the vehicles crashed into toll station on the highway. 4. There is a strong sense of community here; everyone is friendly and helpful. 5. Smartphones technologies make people's lives easier because they can reduce household chores. 6. Hoa feels lonely because she doesn't interact with many people. 7. In the future, people will have limited privacy because there are cameras everywhere. 8. The security device has a heat sensor which detects the presence of people and animals. 9. Future cities will become more livable and provide a high quality of life to city dwellers. 10. Vienna is considered as one of the world's most liveable cities because of its stability and good infrastructure. 11. The new technologies can predict changes in the traffic and warn people of traffic congestion.