She seemed to be aware of the delicacy of the situation and she was taking great care not to say anything to ______her companion.
【正确答案】 D
【答案解析】ignore:忽视,不理睬;neglect:疏忽,忽视;charm:取悦,令人陶醉;embarrass:使尴尬。根据句意可知,选D。