Ex. 2
2. Nat is Sally's and Jason's son and Toby's and Katie's brother.
3. Jason is Nat's, Katie's and Toby's father.
4. Katie is Nat's and Toby's sister and Sally's and Jason's daughter.
5. Sally is Jason's wife.
6. Jason is Sally's husband.
ex. 1
Первое предложение не полностью видно, скорее всего там their, но не уверена
2. our
3. his
4. your
5. her
6. its