Câu hỏi:

There are many available ___________ power sources in Vietnam including sun, wind, water, etc.

When will the non-renewable energy sources be use up?

In India, the demand for ___________ has always been more than the supply.

Will nuclear energy used by many countries in the world?

 ___________ energy is produced by collecting sunlight and converting it into electricity.

Will your class visit the hydro power station in Hoa Binh next week?

When you save energy, you not only save money, you also reduce the demand for ___________ such as coal, oil, and natural gas and that is a great way to play a part in saving the planet.