Grace doesn't want to move to New York because she thinks if she were to live there,she wouldn't be

问题描述:

Grace doesn't want to move to New York because she thinks if she were to live there,she wouldn't be
(2012安徽卷)
Grace doesn't want to move to New York because she thinks if she ______ there,she wouldn't be able to see her parents very often.
A.lives
B.would live
C.has lived
D.were to live
是对将来的虚拟,为什么不选B?

if 引导的条件句中不能用would+动词原形谢谢~