the clouds, you would find the airplane in the sky easily A．Had it not been for
来源：网络
时间：
推荐文章
__________ the clouds, you would find the airplane in the sky easily
A．Had it not been for B．If it were not
C．If it had not been for D．Were it not for
试题答案
D
考查虚拟语气的用法。虚拟条件句如果if被省略，从句需部分倒装。