Посмотрите на родословное дерево и заполните пропуски при помощи his/her/their.

Решение:

1. I saw Sarah with her husband, Philip.
2. I saw Laura and Steve with their children.
3. I saw Steve with his wife, Laura.
4. I saw Ben with his brother, Will.
5. I saw Laura with her brother, Will.
6. I saw Sarah and Philip with their son, Will.
7. I saw Laura with her parents.
8. I saw Beth and Robert with their parents.