1. Lan is four years older than Thu.
2. This novel is not as interesting as that one.
3. Her dress is more beaytiful than mine.
4. In the 1970s, he was the richest musician in the world.
5. My/His/Her/... father is not as hard-working as my/his/her/... mother.
6. ?
4. In the 1970s, he was the richest musician in the world.
8. The director is (much) more enthusiastic than his employees.
câu 6 mình k chắc nên k làm đc nhé