29. Peter suggested cloth bags shoudl be used instead of plastic bags.
30. Because Mrs Mi wasted water, she got an enormous water bill.
31. I think you shouldn't go on using dynamite to catch fish.
32. We are disappointed that people have spoiled this area.
33. If we go on wasting water, there will be a shortage of fresh water in a few decades.
34. I suggest you should complain using electricity to catch fish to the local authorities.
