Слова для справок : clean,slow,dirty,healthy,frindly,dangerous,modern,big,expensive,noisy,boring,quiet,interesting ,busy,beatiful. nature in the city is than nature in the country.life in the country is than it is in the city .it is to live in the city than in the country.people in the country are often than people in the city.
1) dirtier
2) cleaner
3) more dangerous
4) healthier