III/
1. History is an interesting subject.
2. Her English is better than mine.
1.interesting
2. better
IV. What is your address?
The red dress is more expensive than the blue one
Nam is the tallest in his class
What is her job?
What's his date of birth?
Mai is older than Nam.
The ball is cheaper than the book
Minh is the tallest of Minh, Phong. Nam
What a lovely doll!
The yellow dress is more expensive than the blue one
What colourful pictures!
What bright rooms!