He admitted his best friend , Jack, to make up for that.
A. betraying , determining
B. betraying , determined
C. to betray , determining
D. to betray , determined
网友回答
A. betraying , determining
(答案→)B. betraying , determined
C. to betray , determining
D. to betray , determined
解析：第一空考查：承认做了某事admit doing sth，第二空考查短语：be determined to do 决定做某事，在这里作状语，句意：他承认背叛了他最好的朋友，杰克。决定为那件事弥补。所以选A。