Câu hỏi:

We will cut down on the use of natural gas because it is …….… & harmful to the environment.

Choose the word having different stress from the others.

Read the following passage and decide if it is True or False

   Many people still believe that natural resources will never be used up. Actually, the world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, we also should use them economically and try to find out alternative sources of power. According to Professor Marvin Burnharm of the New England Institude of Technology, we have to start conserving coal, oil and gas before it is too late; and nuclear power is the only alternative.

   However, many people do not approve of using nuclear power because it’s very dangerous. What would happen if there was a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations.

   The most effective thing is that we should use natural resources as economical as possible.

Question: We should use fuel economically.

We will be using biogas for cooking and heating at this time next month.

→ Biogas ………………………………

I (send) ………………….………….. you my book tomorrow.

Nam is a hard-working student. He (pass) ……………….…………. the exam easily this year.

Choose and circle the best answer.

Wind, hydro and solar are ……… energy sources.