试题题干
Dr. Zhang was always（ ）the poor and the sick, his private clinic often providing them with free medical care.
参考答案
正确答案：
试题解析
本题考查词组辨析。
be tended by：被照顾；be absorbed in：全神贯注于，专注于；be concerned about：关心，担心；be reminded of：提醒。故C选项符合题意。
句意：张医生总是关心穷人和病人，他的私人诊所经常为他们提供免费医疗服务。