|a) Sarah has got a sister, Emma, and a half-brother, Jonathan.|
b) She is one of Margaret's granddaughters.
c) Her parents are divorced : Philip, her father is not remarried
d) Sarah's stepfather's name is Jeff.
e) Carol and Deborah are twins. They are Eileen's nieces.
f) Teddy is Mark and Joanna's only son and one of Bob's nephews.
g) Margaret has got two daughters and one son.
h) Valerie is Bob's wife.
i) Eileen is Mark's sister-in-law.
j) Joanna is one of Sarah's aunts.