Mình làm từ câu trước

1. Why don't we help poor children with giving them English lessons for free?

2. I suggest using energy-saving bulbs.

3. Jane suggested John should put a better lock on the door.

4. Mrs Jones suggests turning off the fan before leaving.  

5. What about using electric cars to minimize the pollution?

6. Let's use public buses instead of motorbikes!

7. Would you mind not interrupting me all the time?

8. The local authorities suggested taking the garbage to recycling centers.

9. Shall we buy energy-saving bulbs?

10. Nam suggsted that chicken shouldn't be eaten to avoid being infected with birld flu.

11. He suggested nets should be used to catch fish instead of electricity or dynamite.

12. Energy-saving bulbs should be used to save electricity.

13. This cake has to be divided into 3 equal parts by her parents.

14. If we remember  to take care of this tree, it won't die.

15. If he works hard, he can improve his English pronunciation quickly.

16. If you drink coffee late at night, you can't sleep.

17. If we take a shower instead of a bath, we can reduce the amount of water.

18. If we recycle, we will save natural resources.

19. If we put garbage into the bins, we can minimize pollution.

20. If we work hard, we will get success

21. Your English will be improved if we practice English regularly.

22. Because David was seriously sick, he couldn't pass in his final exam.

23. Since the water is polluted, we can't swim in this river.

24. Because she didn't feel well, the doctor sent her to hospital.

25. As we advised them, they didn't throw trash onto the water. 

26. Since the river is too dirty, we can't swim in it