Dr. Smith was always ______ the poor and the sick, often providing them with free medical care.
【正确答案】
D
【答案解析】 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”。