Generally Speaking,___according to the directions thedrug has no side effect.A、when taking B、when taken C、when to take D、when to be taken为什么这题选B,不选D

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GenerallySpeaking,___accordingtothedirectionsthedrughasnosideeffect.A、whentakingB、whentakenC、whentot

Generally Speaking,___according to the directions thedrug has no side effect.A、when taking B、when taken C、when to take D、when to be taken为什么这题选B,不选D
Generally Speaking,___according to the directions thedrug has no side effect.
A、when taking B、when taken C、when to take D、when to be taken
为什么这题选B,不选D

Generally Speaking,___according to the directions thedrug has no side effect.A、when taking B、when taken C、when to take D、when to be taken为什么这题选B,不选D
答案:B
解析:这道题主要考察非谓语动词表示的语态以及时态的含义:
taking表示主动和进行
taken表示被动和过去
to be taken表示被动和将来
在这道题里when taken according to the directions,用taken表示被动,主句时态是现在时,因此这个taken不是将来发生的,所以不能选D.
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B 选项的 when taken 其实是 when (it is) taken 被动语态的表达,it is 被省略,直接指向句子的主语 the drug.