Use the word in brackets in their correct comparative forms to complete the sentences

Use the word in brackets in their correct comparative forms to complete the sentences.
1. Fanners often have to start a day_________than city dwellers. (early)
2. I think people in the countryside are__________than those in the city. (friendly)
3. Houses in cities are much__________than those in the countryside. (tall)
Air pollution in our city is much________than it used to be. (bad)