Câu hỏi:

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

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

I hope the storm won't be destroyed many buildings in the city.

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.

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

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

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