It's hard for me to imagine what I would be doing today if I ___in love ,at the age of seven ,with the Melinda cox Libra

问题描述:

It's hard for me to imagine what I would be doing today if I ___in love ,at the age of seven ,with the Melinda cox Library in my hometown.
A .wouldn't have fallen
B .had not fallen
C .should fall
D.were to fall

答案:B.
翻译:对我来说很难想象,如果七岁时我没有喜欢上故乡的梅琳达科克斯图书馆的话,我现在会正在做什么.
此题考查if从句的错综虚拟语气.
1.主句what I would be doing today是对现在情况的虚拟.
但是if从句中,根据时间状语at the age of seven所表达出的句意,却是对过去动作的虚拟.
根据相关语法,If从句如果是对过去动作的虚拟,则从句使用过去完成时,即其谓语动词由“had (not) done”构成.
所以正确答案非B莫属.