Millie isn't as heavy as Sandy.Sandy is （）（）Millie.（改为同义句）

Millie isn't as heavy as Sandy. Sandy is （lighter）（than）Millie.The earth is bigger than the moon. The moon isn‘t （as）（big）（as）the earth.保证准确,希望能帮助到你!望采纳!谢谢~~~不懂可以追问~~~...