问题补充：
单选题Thereisarealpossibilitythattheseanimalscouldbefrightened,________asuddenloudnoise.A.being thereB.there beingC.should there beD.there was
答案：
C解析考查虚拟语气和倒装句。本题是一个省略了if的虚拟语气句，并且是与将来相反，从句可以使用：should+动词原形；原句为：If there should be a sudden loud noise, these animals could be frightened.
