问题补充：
It is 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：
A. wouldn’t have fallen
B. had not fallen
C. should fall
D. were to fall
解析：此题涉及错综时间虚拟条件句，主句与现在事实相反，条件句与过去事实相反。句意为：要不是在七岁时就迷上了 Melinda Cox 图书馆，我真不能想像我如今会在做什么。
