The doctors tried their best ____ the dying boy's life,but they failed at last A.to save B.saveC.saving

分类: 作业答案 • 2021-12-20 02:36:05

问题描述：

The doctors tried their best ____ the dying boy's life,but they failed at last A.to save B.save
C.saving

答

try one's best to do sth,选A