Перепишите следующие предложения, подчеркните в них герундий и укажите его функцию:
1. The aim is finding new ways of utilizing the polymers in light industry.
2. Not long ago we began utilizing hot underground water for heating.
3. Using atomic fuel for the production of electricity is highly promising.
4. Producing power is dependent mainly on the fuel and machinery available.
5. The burning of fuel is one of the sources of obtaining power.