Di cuál es la palabra correcta

Paul and Jeannie are going to visit ________ friends tomorrow.
1. his
2. her
3. their
4. theirs
Pedro usually goes to England for ________ holidays.
1. he
2. his
3. him
4. her
Sheila is buying a present for ________ mother.
1. her
2. hers
3. theirs
4. None of the above
We are living in ________ new home.
1. our
2. ours
3. both
4. none
"Is this your car?" - "No, it's ________."
1. her
2. hers
3. my
4. mine
"Is this your computer?" - "Yes, it's ________."
1. his
2. hers
3. yours
4. mine
I'm reading my book and you're reading ________.
1. your
2. yours
3. mine
4. my
Our dog has ________ own place here.
1. his
2. her
3. its
4. All are possible
The praying mantis eats ________ partner after sex.
1. her
2. his
3. its
4. All are possible
Bert and Ernie, ________ parents are here!
1. your
2. yours
3. theirs
4. All are possible