1) I think oranges are tasty but plums are tastier (than oranges) and
bananas are the tastiest.
2) The USA is big but Canada is bigger (than the USA) and Russia is the biggest.
3) November is cold but December is colder (than November) and January is the coldest.
4) I think mice are friendly but cats are friendlier (than mice) and dogs are
the friendliest.
5) Clowns are cute but dolls are cuter (than clowns) and teddy bears are the cutest.
6) Evenings are dark but late evenings are darker and nights are the darkest.
7) Days in early autumn are bright but days in late spring are brighter and
days in summer are the brightest.