1. Choose: My grandfather ____ walk to school every day.

2. Choose: We didn't ____ have a mobile phone.

3. Choose: If you switch off the lights, you ____ energy.

4. Choose: If we ____ water, there will be less for everyone.

5. Choose: Gold ____ in the Eastern Desert.

6. Choose: A table is made ____ wood.

7. Choose: How ____ sugar do you need?

8. Choose the word that means "طاقة".

9. Write 4 sentences comparing your life now with your grandparents' life. Use used to.

10. Write a slogan and two pieces of advice to save energy at school. Use If ... will ... in one sentence.