Step One :Guessing (15分)
1.right away ____ ;2. wells ____ 3.pipes____; 4.burst ____ ; 5. million _____ ;6. event _____ ; 7.as if ___ ;8. at an end ___ ; nation ____; 10. canals ____; 11. steam ____ ;12. dirt ____ ; 13. in ruins ___ ;14. suffering ____ ;15.extreme_____