Make sentences. use isn't/aren't . exsmple 1. alex isn't as old as david. 1. alex is younger than david. 2. you're shorter than rosie. 3. keyboards are cheaper than printers. 4. a bicycle it's slaver than a car. 5. cheetahs are smaller than lions. 6. the science exam it's easier than the maths exam.
2. You're not as tall as Rosie.
3. Keyboards aren't as expensive as printers.
4. A bicycle isn't as fast as a car.
5. Cheetahs aren't as big as lions.
6. The science exam isn't as difficult as the maths exam.