◎ 题干
Generally speaking, _____ according to the directions, the drug has no side effect.

[     ]

A. when taking
B. when taken
C. when to take
D. when to be taken
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Generally speaking, _____according to the directions, the drug has no side effect. [ ]A. when taking B. when taken C. when to take D. when to be taken …”主要考查了你对  【过去分词】【省略句】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。