Câu hỏi:

Don’t phone me between 7 and 8. We (have) ………………….………….. dinner then.

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

Which of the following is NOT non-renewable source of energy ?

At a seasonal festival, people race down the hill to ......................cheese.

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

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

→ Biogas ………………………………

Choose and circle the best answer.

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