Exercise 15. Make the following interrogative and negation. 1. You are an engineer. 2. His little brother is a schoolboy. 3 Her parents are at home. 4. Our teacher is at the library. 5. The cars are in the street. 6. The theatre is in the centre of the town. 7. My cousin is at school. 8. They are good sportsmen. 9. His father is a worker. 10. The street is narrow.

1. You are not an engineer.

2. His little brother is not a schoolboy.

3 Her parents are not at home.

4. Our teacher is not at the library.

5. The cars are not in the street.

6. The theatre is not in the centre of the town.

7. My cousin is not at school.

8. They are not good sportsmen.

9. His father is not a worker.

10. The street is not narrow.

1. Are you an engineer?

2. Is his little brother a schoolboy?

3 Are her parents at home?

4. Is our teacher at the library?

5. Are the cars in the street?

6. Is the theatre in the centre of the town?

7. Is my cousin at school?

8. Are they good sportsmen?

9. Is his father a worker?

10. Is the street narrow?