Mr. Smith was to break his habit of smoking after the medical examination last month.
A. devoted
B. concerned
C. used
D. determined
网友回答
A. devoted
B. concerned
C. used
(答案→)D. determined
解析：词义辨析。devote to doing sth.献身于，致力于；concerned忧虑的，担心的；be used to do sth.被用于做某事；be determined to do sth.下决心做某事。句意：史密斯先生在上个月的医疗检查之后下决心改掉吸烟的习惯。选D.