The building is carefully designed so that everyone can leave the building safely if an accident .
A. increases
B. raises
C. rises
D. arises
网友回答
A. increases
B. raises
C. rises
(答案→)D. arises
解析：句意：这栋大楼很认真地设计以便人人都能安全离开如果事故发生的话。arise产生；出现；起身，起立，故选D。另外，increase是增加之意，rise，arise都有升起，抬起，上升的意思，rise 是不及物，如;太阳升起 the sun rises arise raise是及物，举手 raise the hand 很少用到，人站立 people arise。故选D