Câu hỏi:

The result of the exam will announce in June.

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

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

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

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.

Will nuclear energy used by many countries in the world?