Ex.2
1. A is shorter than B.
B is taller than A.
C is the tallest person in my family.
2. A is smaller than B.
B is bigger than A.
C is the biggest cake in the shop.
3. A is cheaper than B.
B is more expensive than A.
C is the most expensive book in the shop.
4. B is happier than A.
A is sadder than B.
C is the happiest student in the class.