虚拟语气,The driver might have had an accident but for the fact that he____the car in time.A.should have braked B.had brakedC.would brakeD.braked为什么不能选B?不是应该用过去完成时吗?

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虚拟语气,
The driver might have had an accident but for the fact that he____the car in time.
A.should have braked
B.had braked
C.would brake
D.braked
为什么不能选B?不是应该用过去完成时吗?

已经及时刹车是事实,不需要虚拟.