Поставьте в сравнительной и отличной ступени

slim - 1) slimmer - 2) the slimmest

beautiful - 3) more beautiful - 4) the most beautiful

tidy - 5) tidier - 6) the tidiest

near - 7) nearer - 8) the nearest

good - 9) better - 10) the best

slimer the slimmest

beautifuler the beautifulest

tider the tidest

neared the neast

gooder the goodest