【题目】Amie Salmon, disabled, is attended throughout her school days by a nurse _____________to guard her.
A. To appoint B. appointing
C. appointed D. having appointed
在线课程【答案】C
【解析】这里a nurse与appoint（任命）之间是被动关系，故排除ABD,这里是过去分词短语作定语。故选C。句意：Amie Salmon是一个残疾人，她在上学期间有一个指定的护士来照顾她。