If it wasn't so crowded, Nanjing ________ a nice place to live i

If it wasn't so crowded, Nanjing ________ a nice place to live in.
A、will be
B、would be
C、would have been
D、could have been
【正确答案】:B
【题目解析】:if引导的虚拟语气,表示对现在事实的假设,从句用动词的过去式,主句用would/should/might/could+动词原形