Exercițiul 4 și 5 va rog..

4.
Dark-darker; plump-plumper; famous-more famous; difficult-more difficult; easy-easier; fat-fatter; beautiful-more beautiful; good-better
5.
Serena is younger than Venus.
Venus is heavier than Serena.
Venus is taller than Serena.
Serena has got shorter hair than Venus.