(2013·衡水一模) The question you should take this medicine should be decided by your family doctor.
A. why
B. what
C. whether
D. that
网友回答
A. why
B. what
(答案→)C. whether
D. that
解析：句意：你是否吃药这个问题应由你的家庭医生决定。空处引导同位语从句，用来解释说明前面的question的具体内容。再根据句意可知，应选whether。