The Education Bureau gave a warning to each school without any when the virus of H1N1 hi

问题补充：

The Education Bureau gave a warning to each school without any when the virus of H1N1 hit our city.

A. delay

B. effort

C. schedule

D. consideration

答案：

(答案→)A. delay

B. effort

C. schedule

D. consideration

解析：考查名词： A. delay推延，B. effort努力，C. schedule时刻表，D. consideration考虑，without delay立刻，毫不迟疑，句意是：当H1N1病毒袭击城市的时候，教育部立刻向每个学校发了一个警告。选A。