1) use the degree of comparison: 1. this student is (attentive) in our group. 2. asia is (large) than australia 3. he was (old) in the family. 4. this book is (interesting) of all i have read this year. 5. your work is (bad) in the class.

This student is the most attentive in our group.
Asia is larger than Australia
He was the oldest in the family.
This book is the most interesting of all I have read this year.
Your work is the worst in the class