Вот задание помогите пожалуйста Mr Brown's wife died last year. he has a son called Don and a daughter called Alice. in january Mr Brown married mary. she also has a son John and a daughter called Sara. what is their relationship? 

Это образец :John and Sara are Mr Brown's stepchildren

1) mr.brown.........John's.......

2) Sara ..... Mr brown's ....... 

3) don.... Mary's ....

4) Mary ... Alice's ......

5)mr brown ...... Sara's ........

6) Alice .....  Mary's .......