Comparative : a) shorter b)longer c) rarer d)more aggressive e)smarter f)better g) stronger h)older i)younger j)heavier k)more sociable l) worse. Superlative : a) the biggest b) the lightest c) the heaviest d) the most aggressive e)the most peaceful f)the proudest g)the oldest h)the youngest i)the longest j) the shortest k) the most adventurous l)the best m)the worst n)the strongest o)the smallest p)the most common q) the best
