Исправьте предложения.
1. Doctors teach children.
2. A nurse helps doctors.
3. A pilot drives a car.
4. A farmer works on a farm.
5. Teachers work at school.
6. A fireman brings letters.
7. Workers bake bread.
8. A programmer fights fires.
9. Dancers work in the hospital.
10. Clowns work in the circus.