题目内容
【题目】It was nearly an hour __________ the sleeping pill __________ effect.
A. when; took B. before; took
C. since; takes D. before; would take
【答案】B
【解析】句意:安眠药在大约一个小时后起作用, It was...before…过了……才……；take effect 开始起作用，见效。
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题目内容
【题目】It was nearly an hour __________ the sleeping pill __________ effect.
A. when; took B. before; took
C. since; takes D. before; would take
【答案】B
【解析】句意:安眠药在大约一个小时后起作用, It was...before…过了……才……；take effect 开始起作用，见效。