________ right now,she would get there on Sunday.

选c,考察虚拟语气,这句话的意思是 如果她马上走的话她会在周日到达那儿.表示和将来事实相反或者对将来的事实推测要用虚拟语气,其结构是：从句：If + 主语+ should (或were to) + 动词原形+……
主句：主语+ would (could,should,might) + 动词原形+…… ,if常常可以省略,但是省略的话if后面的从句一定要用一般疑问句的语序,请看更多的例子
⑵、If you were to do such a thing again,you would be punished.如果你再做这样的事情,就会受到惩罚.
⑶、If I should work harder,I could make much more progress.假如我更努力学习的话,我会取得更大的进步.(事实上我不可能努力学习)