单选题
29.
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
【正确答案】
D
【答案解析】
史密斯医生总是关心穷人和病人，经常给他们提供免费医疗。
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