All parents are willing to risk their lives to save of their children when a disaster is

问题补充：

All parents are willing to risk their lives to save of their children when a disaster is approaching.

A. losing; that

B. to lose; those

C. losing; those

D. having lost; the ones

答案：

A. losing; that

B. to lose; those

(答案→)C. losing; those

D. having lost; the ones

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