Respuesta:
1 This is a nice cat. It's **nicer** than my friend's cat.
2 Here is Emily. She's six years old. Her brother is nine, so he is **older** than Emily.
3 Lucy is clever, but Carol is **cleverer** than Lucy.
4 We have only little time for this exercise, but in the examination we'll have even **less** time.
5 He has an interesting hobby, but my sister has the **most interesting** hobby in the world!
6 School is boring, but homework is **worse**.
7 This magazine is cheap, but that one is **cheaper**.
8 We live in a small house, but my grandparents' house is even **smaller**.
9 Skateboarding is a dangerous hobby. Bungee jumping is **more dangerous**.
10 Yesterday John told me a funny joke. This joke was the **funniest** I've ever heard.
11 My father is heavy. My uncle is much **heavier**.
12 My mother has a soft voice, but my teacher's voice is **softer**.
13 Amy has a beautiful baby, but my sister has the **most beautiful** baby in our family.
14 I live in a large family, but my grandfather lived in a **larger** place in the USA.
15 Florida is sunny. Do you know the **sunniest** place in the USA?
