_____ the clouds , you would find the airplane in the sky easily.

来源：百度知道 编辑：UC知道 时间：2024/06/08 08:04:39
A Had it not been for B If it were not
C If it had not been for D Were it not for
选什么？为什么？

句子意思为：“要不是因为有云，你很容易会看到天上的飞机。”
以现在事实相反，所以用were+V原，if引导的条件状语从句可以省略。
were it not for=if it were not for
D

B

答案是D.这是对现在的虚拟，从B,D中选，要不是的表达是It were not for....