1) Noise pollution in big cities can lead to hearing problems 

2) Lots of aquatic animals die because of oil spills

3) If you were the president of the country, what would you do to protect the environment?

4) One way to save the environment is to use renewable energy sources

5) This boy suffers his birth defects because his parents have been exposed to radioactive pollution

9) If you don't keep silent, you will wake the baby up 

10) If you don't stop talking, you won't understand the lesson

11) If I knew her number, I would ring her up

12) If I knew the answer, I would tell you 

13) If we had had a map, we wouldn't have got lost 

14) If Susan hadn't eaten four cream cakes, she wouldn't have felt sick

15) If there hadn't been this treatment, the patient would have died

16) If he hadn't been late every day, he wouldn't have lost his job

17) If Peter didn't eat so many chips, he wouldn't be fat 

18) If Robert hadn't smoked cigarettes, he wouldn't have got a bad cough 

Sorry hồi nãy mình không thấy hai ảnh còn lại nên làm có một phần, bạn tham khảo nhé