It is selfless the doctor to devote all the time he had for the patients.A. for; to care

问题补充：

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：

A. for; to care

B. of; to care

C. for; to caring

(答案→)D. of; to caring

解析：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。