Переделайте следующие предложения, изменив active voice на passive voice. предложения переведите на 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.
2)gravitation was first studied by isaak Newton
3) the electrical equipment was supplied