This is .....  .....    ball.
This is ..... ......    mum.
This is .... ......    cheese.
These are ... .... rollerblades.
(kittens,mouse,girls,girl)
пример:(This is the boys" dog.)

This is the kittens' ballThis is the girl's mumThis is the mouse's cheesethese are the girls' rollerblades.

This is the kitten's ball. This is the girl's mum. This is the mouse's cheese. These are the girl's rollerblades.