It seems you need to apologize quickly a good friend.
A. avoiding to lose
B. to avoid losing
C. avoiding losing
D. to avoid to lose
网友回答
A. avoiding to lose
(答案→)B. to avoid losing
C. avoiding losing
D. to avoid to lose
解析：考查不定式做目的状语，句意：看起来你需要马上道歉为了避免失去一个好朋友。短语：避免做某事avoid doing sth.用to avoid losing表示目的状语，故选B。