5. Прочитайте следующие предложения. Найдите в каждом из них группу «подлежащие – сказуемое», определите время и залог. Составьте все типы вопросов к предложениям.

1. Natural gas is a major source of electricity generation.

2. Hydrogen has many applications.

3. Compressed natural gas is used in rural homes.

4. Natural gas can be used to produce hydrogen.

5. Natural gas burns more cleanly than other hydrocarbon fuel.

6. Years ago, the gas was just vented to the atmosphere.

7. For hundreds of years, natural gas has been known as a very useful substance.

8. And no doubt, new uses of natural gas are being discovered all the time.