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

问题补充：

After that, he knew he could any emergency by doing what be 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：短语辨析。A侥幸逃脱；B相处，进展；C完成；到达；渡过；用光；(使人)明白；通过；接通(电话)；D传达，被理解；结合句意可知C正确。句意：从那以后，他知道通过全力以赴，他就能度过任何困难。