shorter than.taller.went swimming.I didn't.played football.A building is taller than a house.A basketball is bigger than a volleyball.The Changjiang River is longer than the Huanghe River.An elephant is heavier than a tiger.A lamb is smaller than a sheep shorter than.taller.went swimming.I didn't.played football.A building is taller than a house.A basketball is bigger than a volleyball.The Changjiang River is longer than the Huanghe River.An elephant is heavier than a tiger.A lamb is smaller than a sheep