She is making herself ill with______over her son's future.
【正确答案】 D
【答案解析】解析:本题考查名词辨析。worry既可作动词用,也可以作名词用,意思是“忧虑”,后接介词about或over。worry over比worry about对某事的忧虑更为持久,更为专注。annoyance,烦恼,打扰;disgust,厌恶;trouble,麻烦。