We haven't met before,have we?
You come from Australia,(1)_____?
It's very hot there,(2)_____?
But it never gets very cold,(3)____?
They speak English there,(4)_____?
You haven't been here long,(5)_____?
You're on holiday,(6)_____?

You come from Australia,(1)_don't  you?It's very hot there,(2)_isn't it_?But it never gets very cold,(3)_does it?They speak English there,(4)_don't they?You haven't been here long,(5)_have you?You're on holiday,(6)_aren't  you?