问题
选择题
The safety belt saved the boy; otherwise, he _____ in the accident.
A．would be killed
B．was killed
C．had been killed
D．would have been killed
答案
答案：D
题目分析：句义：安全带救了那个男孩，否则他会在事故中死亡。Otherwise相当于一个对过去虚拟的条件句：if he handn’t tied the safefy belt.对过去的虚拟主句用would have done 所以D正确。