1. If teachers teach environmental issues at school , students will be more aware of protacting the environment.
2. If light pollution happens , animals will change their behaviour pattens .
3. If we switch from nuclear power to renewable energy sources , the levels of radio active pollution will decrease .
4. If the water temperature increases , some aquatic creatures will be unable to reproduces .
5. If the water is contaminated , people will get more diseases.
Cấu trúc :
S + V(hiện tại đơn) + O , S + will + V + O .
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