问题
选择题
Had it not been for the fact that about 30 pupils __________ in the state of Connecticut a fortnight ago, their parents ___________ in deep sorrow now.
A．had been killed, wouldn’t be
B．were killed, couldn’t be
C．would have been killed, mightn’t be
D．should be killed, wouldn’t be
答案
答案：B
题目分析：第一空是对过去事实的陈述故用一般过去式；从句是虚拟语气时主句用would/could/might+动词原形，句意是如果两周前三十个小学生被枪杀不是事实，那么现在他们的父母就不会很难过了。故选B。
点评：此题关键是划分清楚句子成分，整个句子是虚拟语气，而第一空是一个主语从句，是对过去事实的陈述。