the help from the doctor, the little boy his life.
A. Apart from; should have lost
B. Without; could lose
C. Except for; would have lost
D. But for; would have lost
网友回答
A. Apart from; should have lost
B. Without; could lose
C. Except for; would have lost
(答案→)D. But for; would have lost
解析：考察虚拟语气，“如果不是医生的帮助这个小男孩就死了。”apart from除了 except for 除了without 和but for都表示“如果不是”但是这句话是对过去情况的虚拟，所以答案D。