old,lazy,lucky,big,fat,thin,heavy的比较级 最高级

比较级：old--older/elder,lazy--lazier,lucky--luckier/more lucky
big--bigger,fat--fatter,thin--thinner,
heavy--heavier,
最高级：old--oldest/eldest,lazy--laziest,
lucky--luckiest/most lucky ,big--biggest,
fat--fattest,thin--thinnest,
heavy--heaviest.
就是这样.