请各位大师帮我解决一下几道英语题,谢谢!

问题描述:

请各位大师帮我解决一下几道英语题,谢谢!
Quite a few people used to believe that disaster_____if a mirror wad broken .
A.wad sure of.
B.wao sure of having struck
C.wad sure to be struck
D.wad sure to strick
应该选哪一个,为什么?

此题考查主动与被动!
灾难是主动降临的,而不是被降临.