Tìm lỗi sai => sửa lại 6. This morning it is raining during the recess, so we didn't go out of the classroom. 7. There is lot of crime in big cities because many people don't have jobs and can't make enough money. 8. Students could turn of lights, fans and computers after class to save energy. 9. Blue City gets 41% of it energy from renewable sources. 10. Oil cause pollution and it's non-renewable, so one day it will run out.