1.If we keep on.....using....more and more motor vehicles, we.....will run.....out of oil.(use/run) 
2.We can prevent.....littering.....by.....putting......garbage bins around the schoolyard. ( Litter/put) 
3.A lot of sea creatures.....will die.......out because of dynamite.......fishing.........( Die/Fish) 
4. Crops.........sprayer......with pesticides.....kill...........insects(Spray/ kill) 
5. The rice plant ......will die.........if the rice paddies......are pollute......(Die/pollute)