English grammar worksheet focusing on possessive adjectives and possessive pronouns.

Explanation:
Let's solve this step by step.

First, we need to understand what a possessive adjective is. Possessive adjectives show ownership. They are: my, your, his, her, its, our, their. They go before a noun to show who something belongs to.

Now, let's look at each sentence in the first part.

1. "I really like Mr Sutton. He is _____ favourite teacher."
The speaker likes Mr Sutton. So, the teacher belongs to the speaker. We use "my".

2. "Sarah didn't invite me to _____ birthday party."
The party belongs to Sarah. So, we use "her".

3. "Paul and Karen phoned me from _____ house in Ibiza."
The house belongs to Paul and Karen. So, we use "their".

4. "You are very happy because you have passed _____ driving test."
The driving test belongs to the person being spoken to. So, we use "your".

5. "We never forget to do _____ homework."
The homework belongs to "we". So, we use "our".

6. "Your dog is very cute. What is _____ name?"
The dog belongs to the person being spoken to. So, we use "your".

7. "Helen is worried because _____ grandmother had an accident yesterday."
The grandmother belongs to Helen. So, we use "her".

8. "My parents spend _____ free time in the countryside."
The free time belongs to the speaker. So, we use "my".

9. "Oliver is wearing _____ sunglasses today."
The sunglasses belong to Oliver. So, we use "his".

10. "I have got a cat. _____ name is Daisy."
The cat belongs to the speaker. So, we use "my".

Now, for the second part, we need to use possessive pronouns. Possessive pronouns also show ownership, but they stand alone and do not go before a noun. They are: mine, yours, his, hers, its, ours, theirs.

1. "This jumper belongs to Richard. It's _____."
It belongs to Richard. So, we use "his".

2. "I have made my bed, but my sister hasn't made _____. "
The sister hasn't made her bed. So, we use "hers".

3. "Can I borrow your rubber? I can't find _____. "
The speaker can't find their rubber. So, we use "mine".

4. "This car belongs to my parents. It's _____. "
It belongs to the parents. So, we use "theirs".

5. "These shoes belong to you. They are _____. "
They belong to the person being spoken to. So, we use "yours".

6. "This is Oliver's notebook. It's _____. "
It belongs to Oliver. So, we use "his".

7. "This is the parrot's food. It's _____. "
The food belongs to the parrot. So, we use "its".

8. "Kate and Ben own this house. It's _____. "
It belongs to Kate and Ben. So, we use "theirs".

9. "This umbrella doesn't belong to me. It isn't _____. "
It doesn't belong to the speaker. So, we use "mine".

10. "You have got a lot of toys. Are all of them _____. "
The toys belong to the person being spoken to. So, we use "yours".

Final Answer:
POSSessive Adjectives:
1. my
2. her
3. their
4. your
5. our
6. your
7. her
8. my
9. his
10. my

Possessive Pronouns:
1. his
2. hers
3. mine
4. theirs
5. yours
6. his
7. its
8. theirs
9. mine
10. yours