1. The rapid growth of the population has caused daunting problems for city planners, such as _______________________ roads. (CROWDED) 2. It comes as no surprise that Seattle is the gold standard of ______________________ city living. (SUSTAIN) 3. New York City is expected to increase its __________________ energy capacity by 50% by 2050. (RENEW) 4. Our communities will be ________________________ and more sustainable, so our quality of life will be better. (CLEAN) 5. The government is making plans to _______________________ sensors and cameras in the city centre to detect traffic problems and help drivers to avoid traffic jams. (INSTALLMENT) 6. It's urgent to upgrade the city's transport ________________________ because almost all the roads get flooded after heavy rain. (INFRASTRUCTURAL) 7. We can improve the quality of life of the inhabitants by _______________________ pollution. (REDUCE) 8. City dwellers can enjoy better health care than people living in the _______________________, but they are usually busier and more stressed because of the city's fast pace of life. (COUNTRY) 9. They are building a new waste ________________________ plant to treat wastewater before it is reused or discharged into rivers. (PROCESS) 10. Be _______________________ for overcrowded streets and shopping malls when you visit big cities like Hong Kong and Beijing. (PREPARE)