It was lucky that little Jack was not at home when the fire broke out；otherwise hehis life

问题补充：

It was lucky that little Jack was not at home when the fire broke out；otherwise，hehis life．

A. had lost

B. would lose

C. would have lost

D. might lose

答案：

A. had lost

B. would lose

(答案→)C. would have lost

D. might lose

解析：这题考查虚拟语气，otherwise表示if Jack had not been at home，所以主句用would have done，句意是：很幸运的是 ，大火爆发的时候小杰克不在家，否则他就没没命了。选C。