A-A+
Without computers we ______ the tremendous me
问题详情
Without computers, we ______ the tremendous medical advancement in the last few decades.
A．would not make
B．will not have made
C．could not make
D．couldn"t have made请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：D
解析：without作“如果没有”解，表示一种与事实相反的假设，意思上相当于一个if引导的虚拟条件句。根据题中可看出without computer足与过去事实相反的假设，因此主句应该用“would (should，could，might)+动词的完成式”。
