подчеркните в каждом из них глагол-сказуемое и определите его видо-временную форму и залог. This young scientist makes great contribution to mathematics.The scientist has published the fundamental principles of his investigations.He started his investigations of the properties of a new compound.The law of gravitation was discovered by Newton.A lot of industrial machines will be made of various plastics.
2. Has published - Present Perfect, active voice
3. Started - Past Simple, active voice
4. Was discovered - Past Simple, passive voice
5. Will be made - Future Simple, passive voice