Câu hỏi:

Will nuclear energy used by many countries in the world?

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

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

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

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

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.