please help
I beg....

Answer:
2) jerry is worse at maths than donald
ron is the worst of all
3) meg is better at swimming than nora
kim is the best of all
4) the zebra is heavier than the monkey
the elephant is the heaviest
Explanation:
2) bad at maths
comparative : worse at maths
superlative : worst at maths
3) good at swimming
comparative : better at swimming
superlative : best at swimming
4) heavy
comparative : heavier
superlative : heaviest