Условие:
Write 's, s' or s.
1 My father's name is Peter.
2 Peter and Fiona are my parents.
3 I am Peter and Fiona's son.
4 Max and Eva are my grandparents.
5 Peter is my grandparents' son.
6 Eva is my grandfather's wife.
7 Jill is Tim's brother.
8 Simon is Marta's son.

