You are Sally.

1	Alex and Robbie is / are my brothers.	5	Eric and Sally am / are my parents.
2	Jake am / is my cousin.	6	Jerry and Janice is / are my grandparents.
3	His / Her name's Eric. He's my dad.	7	Sally is my mum. He's / She's nice.
4	Her name's Patricia. He's / She's my aunt.	8	His / Her name's Peter. He's my uncle.

correct answer(s).