1. There is a cat in the room.
2. It is a dog.
3. A dog is more intelligent than a cat.
4. Give me a pen, please.
5. I live in a big house.
6. My mother is a doctor.
7. I have a sister.
8. She is a teacher.
9. I am a pupil.
10. I have a dream.
11. I want to be a politician.
12. I have a friend.
13. He is a clever boy.
14. We met at a cafe.
15. What a wonderful day!