Jawaban:

2. his score is worse than my score.

his score is the worst from 3 of us.

3. this bottle is bigger than that bottle.

this bottle is the biggest in this shop.

4. science lesson is more boring than english lesson.

science lesson is the most boring lesson from all lessons.

5. this dress is cheaper than that dress.

this dress is the cheapest among the others.

6. Andy is cleverer than Cindy.

Andy is the cleverest student in this class.

7. the rabbit is cuter than the bird.

the rabbit is the cutest from 3 other animals in this house.

8. my house is cleaner than yours.

my house is the cleanest from all the other friends' house.

9. this bed is more comfortable than that bed.

this bed is the most comfortable in here.

10. his room is dirtier than John's room.

his room is the dirtiest room i have ever seen.

11. this ice cream is more expensive than that ice cream.

this ice cream is the most expensive than the others.

12. he cames faster than Clarissa.

he cames the fastest amoung us.

semoga membantu:)