He is a foreigner and he is not accustomed like that while he is tn China．
A. treating
B. to be treated
C. to being treated
D. to treat
网友回答
A. treating
B. to be treated
(答案→)C. to being treated
D. to treat
解析：句意：他是外国人当他在中国时他不习惯于像那样的被对待。这里be accustomed to+动名词或代词，又因为he 与treat之间是被动关系，故选C。