Câu hỏi:

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

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

The government has warned that Britain will face power ___________ in the coming winters.

Two layers of glass in the window will be stopped the heat going out.

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.

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