Soccer is the most truly international team sport, but there’s still some question whether it should be called a game or open warfare.
A. due to
B. in addition to
C. as to
D. owing to
网友回答
A. due to
B. in addition to
(答案→)C. as to
D. owing to
解析：C due to“因为”；in addition to“除了”；as to“至于”；owing to“因为”。根据句意“还存在像应该把足球叫做一种游戏还是公开的战斗这样的问题”，C项符合题意。