Помогите пожалуйста! Переделайте следующие предложения, изменив Active Voice на Passive Voice. Предложения переведите на русский язык: 1. The chief engineer organized the work properly. 2. Isaak Newton first studied gravitation. 3. A Japanese firm supplied the electrical equipment. 4. They will test motor-cars on the roads. 5. The scientist made the gigantic experimental work before the adoption of the project.