9. The mobile phone is a newer invention than the iPod.

--> The mobile phone isn't a as new invention as the ipod

10. A jet plane isn't as fast as a car.

--> A jet plane is more slowly than a car

11. Five-star hotels are a little cheaper than four-star hotels.

--> Five-star hotels aren't as much cheap as four-star hotels

12. The Pacific Ocean is smaller than the Atlantic Ocean.

--> The Pacific Ocean isn't as small as the Atlantic Ocean.

13. Salaries are much lower than they used to be.

--> Salaries aren't as low as they used to be

14. A car isn't nearly as expensive as a motorbike.

--> A car is nearly more expensive than a motorbike

Công thức so sánh hơn : S + be + adj + er/ more + adj + than + S2

so sánh ngang bằng: S + be/V + as + adj/adv + as + S2