6. If you stay here, you will feel save
7. If you don't pay your electronic bill today, your electronic will be cut off
8. If you don't stop smoking, your cough may be worse
9. If we don't use less fossil fuel, they will be run out off soon
10. If it doesn't stop rainning today, we may be faced with a serious flood
11. If you do morning exercises regularly, your body will be fitter
12. If we don't use renewable energy, we will have nothing for the future generation.
13. If we don't reduce the use of non-reneweable energy, the climate will change
14. If you lock all the door, no one can break into your house
15. If we don't continue hunting polar bears, they will become extinct in near future.