1 brazil is bigger than australia
2 tyhe river mississippi is longer than  river volga
3 blue whales are heavier than the elephants
4 the pyramids en egypt are older the paranon in greeace
5 the sears tower in chicago is taller than the eiffel tower in paris
6 the akashi kaiki opera in japan is longes the river harvor bridg in australia
7 gold is more expensive than silver
8 esperanto is easier than english

big-bigger
long-longer
heavy- heavier
old-older
tall- taller
expensive-more expensive
easi- easier