______the atmosphere around our Earth, we would not be able to live.A、Had it not

游客2025-03-02 14

问题 ______the atmosphere around our Earth, we would not be able to live.

选项 A、Had it not been for
B、Would it not be for
C、If it has not been for
D、If it were not for

答案 D

解析这是一道语法题，考点是虚拟语气的用法。

转载请注明原文地址:http://tihaiku.com/zcyy/3979930.html

相关试题推荐

随机试题

最新回复(0)

Ontopofthemountain______,aroundwhichweregreenthicktrees.A、didweseea