1. The ...........of that city is so old thát ít needs upgrading 2. .............think that city dwellers will have a better life in the future 3. People may get health problems if they frequently breathe ........air 4. Our cities in the future are likely to become a ...place to live thanks to our innovation 5. If we use renewable energy , their ......on the environment is less Giúp mk vs ạ mk cảm ơn trc