Exercise 7: Rewrite sentences in conditional type 1,2.

1. If I knew her number, I would ring her up.

2. If I knew the answer, I could tell you

3. If Ba were rich, he would travel around the world

4. If I were rich, I would buy that house

5. If I had a motorbike, I could give you a ride.

6. If you don't water these plants, they will die.

7. If you don't hurry up, you will be late for the concert.

8. If Peter didn't eat so many chips, he wouldn't be fat

9. If you saved electricity, you wouldn't have to pay a lot of money

10. If we had enough money, we would buy those new comics

11. If she were free today, she would go to the movie with her friends

12. If he were not lazy, he wouldn't fail the exam

13. If the weather were fine, the children would play outdoors

14. If Thu could swim, she would go to the swimming pool with her friends

15. If people saw UFO, they would call the National UFO Reporting Centre.

16. If she kept the refrigerator door closed, she could save energy.

17. If there weren't much traffic, the air wouldn't be polluted by the waste smoke.

Ex8: Complete the second sentence.

1. If I were you, I would use energy-efficient light bulbs

2. He came up with a great idea for our environmental project.

3. Because of her absence from the meeting, she didn't know the resolution

4. If I had free time, I would take part in the volunteer program.

5. If we don't reduce our plastic waste, we'll threaten our own existence

6. Since there was a hurricane last night, I was without electric power.

7. Toxic waste products were dumped into the rivers or landfill sites.

8. Unless nations act, air pollution death will double by 2050.

9. Due to the rise in the world's temperature, the Artics keeps losing its ice.

10. If I didn't live by the sea, I wouldn't be worried about global warming. 

Ex9: Choose the word whose underlined part is pronounced differently from others.

1. B. dead. Âm /e/ còn lại âm /i/

2. A. environment. Âm /ai/ còn lại âm /i/

3. D. further. Âm /d/ còn lại âm /th/

4. C. dumped. Âm /t/ còn lại âm /d/

5. A. contaminant. Âm /ơ/ còn lại âm /ei/