1. Marry / tall / Peter

Mary is taller than Peter.

2. This book / thick / that book

This book is thicker than that book.

3. The chair / short / the table

The chair is shorter than the table.

4. These / boxes / big / those / boxes 

These boxes are bigger than those boxes.

5. Miss Trang / young / her sister 

Miss Trang is younger than her sister.

6. These building / high / those  building 

These building are higher than those building.

7. The boys / strong / the girls

The boys are stronger than the girls.