It's Mary's own fault if she feels at the party — she makes no effort to be friendly to people．
A. cut out
B. stood out
C. left out
D. made out
网友回答
A. cut out
B. stood out
(答案→)C. left out
D. made out
解析：A. cut out剪下，B. stood out突出，显眼，C. left out遗漏，遗忘，D. made out辨认出，理解，句意：如果玛丽感觉在聚会上被遗忘了那时她的责任---她不去努力的友好的对待人们。选C。