1) the heaviest 2) the driest 3) the highest 4) the most poisonous 5) the most dangerous 6) the heaviest 7) the largest 8) the most difficult 9) the saddest 10) most interesting 11) oldest 12) the best 13) the richest 14) the laziest 15) the dirtiest 16) most tiring 17) the most popular 18) the easiest
