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2019/9/6日在职攻硕英语习题练习中，答错率较高，为：49%
【单选题】______, follow the directions on the bottle carefully.


A．When taken drugs
B．When drugs are taken
C．When one takes drugs
D．When taking drugs