Ответь на вопросы, пользуйся родословных древом из упражнения 4.

Ответ:

1. Mary is her grandmother.  = (She's her grandmother. )

2. Bob is their father.  = ( He's their father. )

3. Sarah is her mother.  = ( She's her mother. )

4. Betty is their sister.  = ( She's their sister. )

5. Jeff and Tom are her brothers. = ( They're her brothers.)