问题
单项选择题
Dr. Smith was always ______ the poor and the sick, often providing them with free medical care.
A. reminded of
B. absorbed in
C. tended by
D. concerned about
答案
参考答案：D
解析： 句意为史密斯先生总是关心穷人和病人，经常向他们提供免费的医疗帮助。本题的题干是两个并列的部分组成的，前一个为“concerned about the poor and the sick”，后一个为“providing them with free medical care”，concerned“关心，涉及，影响”。