`=>`
1. English isn't as difficult as Chinese.
`=>` English is easy than Chinese.
2. Dog eats more than cat does.
`=>` Cat doesn't eat as much as dog.
3. Minh and his close friend are the same age.
`=>` Minh and his close friend aren't the different age.
4. My sister has less money than I do.
`=>` I have more money than my sister does.
5. Tam works the hardest in your group.
`=>` No one works as hare as Tam in your group.
6. Computers are cheaper than they were.
`=>` Computers were more expensive than they are.
7. My mother is the best cook in my family.
`=>` No one cooks as well as my mother in my family.
8. Cars cause more pollution than motorbikes.
`=>` Motorbikes cause less pollution than cars.
9. Showers don't use as much water as baths.
`=>` Baths use more water than showers do.
10. No one in the class is as intelligent as Peter.
`=>` Peter is the most intelligent in the class.