Câu hỏi:

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

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.

They will destroy the forest to build a hydro power station.

I'm afraid that I won't come to your house tomorrow.

 ___________ can be an excellent source of free, renewable energy for poor farmers.

The result of the exam will announce in June.

Will nuclear energy used by many countries in the world?