Câu hỏi:

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?

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

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

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

Will nuclear energy used by many countries in the world?

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