Ответ:

I.

2)Anna is Bill's sister. She's his sister.

3)Jack is Kate's father-in-law.He's her father-in-law.

4.Kate is John's wife. She's his wife.

5.John is Kate's husband.He's her husband.

6.Bill is Anna's brother. He's her brother.

II.

2)Lucy's

3)your

4)whose

5)their

6)Paula's

7)who's

8)Helen's