1.Look,the car is---- than the balloon.But the balloon is---than the car.----处分别填什么,有bigger

1.Look,the car is---- than the balloon.But the balloon is---than the car.----处分别填什么,有bigger
heavier longer linghter smaller shorter 其他题我都填了 剩下heavier and lighter怎么办2.Therabbit's ears are longer than the mouse's.The mouse's earsare shorter thanthe rabbit's.3.The hippo is bigger than the monkey.The monkey is smaller than the hippo.