1. Pigs are slower than horses.
=> Horses are not as slow as pigs.
2. China is larger than Viet Nam.
=> Viet Nam is not ______________________________________________
3. A tractor is more useful than a horse.
=> A horse is not ________________________________________________
4. Soccer is more popular than badminton.
=> Badminton is not ______________________________________________
5. The sun is brighter than the moon.
=> The moon is not _______________________________________________
6. Pigs are fatter than sheep.
=> Sheep are not _________________________________________________
7. Metal is heavier than cotton.
=> Cotton is not __________________________________________________
8. Mary is more intelligent than Tom.
=> Tom is not ____________________________________________________