spot the difference Look and write

2) Ben Higgs has got one child. Sam O'Dell hasn't got one child.
He's got two children.
3) Ben Higgs has got three fish. Sam O'Dell hasn't got three fish.
He's got two fish.
4) Ben Higgs has got one sheep. Sam O'Dell hasn't got one sheep.
He's got two sheep.
5) Ben Higgs has got three mice. Sam O'Dell hasn't got three mice.
He's got two mice.