在职攻硕英语考试

根据网考网考试中心的统计分析，以下试题在2019/5/5日在职攻硕英语习题练习中，答错率较高，为：70%
【单选题】Sometimes very young children have trouble ______ fact from fiction and may believe that such things actually exist.


A．separating
B．having separated
C．to separate
D．for separating