问题
选择题
It is selfless ________ the doctor to devote all the time he had ________ for the patients.
A．for; to care
B．of; to care
C．for; to caring
D．of; to caring
答案
答案：D
题目分析：句意：这位医生把他所有的时间都无私地奉献于照顾病人。It is + 形容词 + of sb to do sth是一个固定句型。devote ···to把……献给，这里的to是介词。所以选D。