_____ something impossible happen right before your eyes is the root of people's love for magic.
问题描述：
_____ something impossible happen right before your eyes is the root of people's love for magic.
A Witnessing B Being witnessed C Having witnessed D To be witnessing
答
A
人们喜爱魔术的根源是能亲眼见证一些不可能的事情发生.
witness是目睹的意思.
目睹是主动的所以用主动,句子框架是XXXisXXX,is前面应用现在分词形式witnessing.