Task 4.
1. is not as tall as
2. is as nice as
3. is as light as
4. is as thin as
5. is as old as
6. am as tall as
7. is not as beautiful as
8. is not as comfortable as
9. is as modern as
10. is not as small as
Task 5.
1. shorter
2. the smallest
3. younger
4. longer
5. as pretty as
6. fast
7. the best
8. more comfortable
9. the most colourful
10. is not as messy as