Alright, let's correct these sentences with the apostrophes:
- It is Pat's birthday next week.
- Do you know where Mum's bag is?
- I think these are your sisters' books.
- Andy's bike is too big for him.
- Daniel's wife's name is Janet.
- The policemen's uniforms are blue.
- That's my friend's house over there.
- I can't remember the girl's name.