31 преобразуйте ниже пассивные конструкции в активные 1. the plan of the work was written by john. 2. a lot of textbooks were read by the child. 3. the meeting is being visited by a group of children from africa. 4. parts of the broken car are being studied by the police. 5. many experiments are performed by the scientist. 6. the model will be made by nick. 7. this project was designed by our class. 8. the letter has been written by chester, from maine. 9. a new maths program was developed by denis bernstain. 10. the clock was made by rosemary emery.