问题补充：
light的最高级和比较级（一下题目同上）low high slow fast hard cheap bright dark cool
答案：
原形,比较级,最高级
light ,lighter,lightest
low,lower,lowest
high ,higher,highest
slow ,slower,slowest
fast ,faster,fastest
hard ,harder,hardest
cheap ,cheaper,cheapest
bright ,brighter,brightest
dark ,darker ,darkest
cool,cooler ,coolest
======以下答案可供参考======
供参考答案1:
light---lighter---lightest
low ---lower---lowest
high ---higher---highest
slow ---slower---slowest
fast ---faster---fastest
hard ---harder---hardest
cheap ---cheaper---cheapest
bright ---brighter---brightest
dark ---darker---darkest
cool ---cooler---coolest
