Unit 3

6. Urban planners aim to make cities more _____ so residents can enjoy cleaner air and safer streets. (live)
8. Modern smart homes use _____ devices to detect movement, temperature and lighting changes automatically. (sense)
9. A green residential area _____ on the outskirts of the city to reduce population density.
10. The floating city _____ they introduced in the meeting can withstand rising sea levels.
11. Many residents struggle to _____ the noise and fast pace of megacities.
12. The underground waste-removal system will become fully _____ by the end of this year. (operate)
14. Governments should _____ renewable energy to power sustainable cities.
15. In smart cities, advanced systems help authorities _____ crime more efficiently.

1. Developing a _____ energy network is essential for future eco-friendly cities. (sustain)
2. The government says they _____ build more eco-friendly public housing next year.
3. Future urban planners must _____ eco-friendly designs to reduce emissions.
4. Smart cities cannot function efficiently _____ citizens share data responsibly.
5. Driverless cars _____ completely replace traditional cars in the future, but no one knows for sure.
7. Citizens must _____ possible changes brought by climate-related migration.
13. The government is testing the _____ of the new air-purifying system before applying it citywide. (effective)