The teacher talked with Jack, problems was poor study habits.
A. whose
B. which
C. one of whose
D. one of which
网友回答
A. whose
B. which
(答案→)C. one of whose
D. one of which
解析：
试题分析:考查定语从句。从结构可知Jack是先行词，后面是定语从句，其中problems和先行词Jack之间存在所属关系，所以用关系代词whose，而从句主语problems 与后面谓语动词在数上不一致，由此可知C选项正确。句意：老师找杰克谈话了，他的问题之一就是不好的学习习惯。