After that he knew he could any emergency by doing what he could to the best of his abi

问题补充：

After that, he knew he could any emergency by doing what he could to the best of his ability.

A. get away with

B. get on with

C. get through

D. get across

答案：

A. get away with

B. get on with

(答案→)C. get through

D. get across

解析：句意：句意：从那之后他知道他能尽最大能力处理任何紧急事件。get through“通过，完成”，符合题意。A项“逃避惩罚；侥幸做成”；B项“继续干，与……相处”；D项“通过，使……被理解”，选C。