1. colder

2. more important

3. thinner

4. more crowded

5. higher

6. more friendly

7. worse

8. more exciting

9. narrower

10. more useful

1. In Canada, January is colder than March

2. I think that good health is more important  than money.

3. You look  thinner.Have you lost weight?

4. I couldn't get a seat in the restaurant. It was more crowded than usual

5. Mountains are higher than hills.

6. I think that people who live in villages are  more friendly than people in big cities. 

7. My exam results were worse than I expected.

8. I think New York is more exciting than Houston.

9. These trousers are too wide. Do you have any that are narrower

10. I like my new dictionary. It is  more useful than the last one.