Ответ:

5.1) the highest

2) the biggest

3) the most beautiful

4) the best

5) the easiest

6) the most popular

6.1) the fastest

2) bigger

3) the most beautiful

4) better

5) the longest

6) more interesting

7.1) not as big as

2) as tall as

3) not as good as

4) not as high as

5) as beautiful as

6) not as warm as

8.1) too

2) enough

3) not enough

4) too

5) not ... enough

6) too

Объяснение: