Câu hỏi:

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

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

The result of the exam will announce in June.

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

Laos and Cambodia have big plans for building up to 11 ___________ on the lower Mekong.

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

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