Here is Emily. She's six years old. Her brother is nine, so he is​ (a)  

This is a difficult exercise. But the exercise with an asterisk (*) is the​ (a)   exercise on the worksheet.

He has an interesting hobby, but my sister has the​ (a)   one in the world.

In the last holidays, I read a good book, but my father gave me an even​ (a)   one last weekend.

School is boring, but homework is​ (a)   than school.

Skateboarding is a dangerous hobby. Bungee jumping is​ (a)   than skateboarding.

This magazine is cheap, but that one is​ (a)  

We live in a small house, but my grandparents' house is even​ (a)   than ours.

Yesterday John told me a funny joke. This joke was the​ (a)   joke I've ever heard.