The cat bit the dog with the shaggy fur’s tail and ran. (the dog with the shaggy fur + ’s).
Apple’s 50p a pound.
All’s he wanted was to go home.
Alex can be a girl’s name.
I'm nipping to the butcher’s for a steak.
What’s he do for a living?.
These are the do’s and don’ts. (apostrophe s used as “dos” may be misread).
The dog’s been chasing the mail carrier again.
Where’s the table tennis balls?.
What are you guys waiting for? Let’s go!.
The dog’s running after me!.