资料题：According to the passage, at months babies can run（　）。

Mothers and fathers have to do everything for new babies.New babies can't sit up.They can't move from place t place.And they can't speak.So they can't tell you what they went.How do little babies call their mothers and fathers? They cry.Little babies cry a lot.They cry when they are hungry.Then someone gives them something to eat.This stops the crying.Babies also cry when they are wet or tired.And babies cry when they don't feel well.Mothers and fathers know each kind of cry and what it means.Babies begin to feel close to people when they are about 3 months ad.Then mother, father, sister, and brother should all hold and care for the baby.This way, the baby feels loved.And the baby will love them as well.This will make a happy home.At 2 months a baby can tum its head and eyes as someone goes by.At5 or 6 months most babies can hold their heads up.They can hold other things, too.They can hold things in theirhands, turn over in bed, and sit up with some help.By 9 months babies may get to their feet and stand with some help.They start to walk with help at about 12 months.And they walk alone at about 15 months.By 18 months most can run.And they are fast.Mothers and fathers must take care that their babies don't get too far away.