Условие:
переведите на русский язык следующие предложения. Определите видовременную форму и залог сказуемого (см. образец выполнения 3).
1. Best energy sources depend on many factors-how the energy is being used, where it is being used, etc.
2. Coal is widely used for power generation in many fast-developing countries.
3. Since the beginning of the industrial revolution, significant progress has been made in the efficient use of fossil fuels.
4. Efficiency of hybrid-fuel cars will be improved by capturing kinetic energy from the wheels to power the battery.
5. We often use plastics nowadays.
6. Scientists have found ways of measuring the sizes and positions of bodies in the Universe.
7. Scientists had solved many interesting problems by the end of the 19th century.
8. Iron is referred to as the most important metal of our metallic age.
9. The name electron was given to the small negative particle discovered by Thomson.
10. The ignition was followed by combustion.