Generally speaking，______according to directions，the drug has no side-effect.

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问题 Generally speaking，______according to directions，the drug has no side-effect.

选项 A、when taking
B、when taken
C、when to take
D、when to be taken

答案B

解析主从句主语应一致，原句应为“…when it i8 taken according to…”这里it is被省略，简化为“when taken’’分词短语作状语。

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英语（二）

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