But for your timely help the boy his life.A. must have lost B. may lose C. might have lo

问题补充：

But for your timely help, the boy his life.

A. must have lost

B. may lose

C. might have lost

D. should lose

答案：

A. must have lost

B. may lose

(答案→)C. might have lost

D. should lose

解析：考查虚拟语气。But for要不是，与过去事实相反，故用might have done，选C。