She always put her medication on the top of the shelf lest the children______it by mistake.

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问题 She always put her medication on the top of the shelf lest the children______it by mistake.

选项 A、took
B、should take
C、had taken
D、would take

答案B

解析 该题是语法结构题,考查虚拟语气的用法。虚拟语气常常用在in case,lest,for fear that等引导的从句中,表示“一旦、以防、以免”等,从句中的动词用should+动词原形,should一般不能省略,如:She put a blanket over the baby for fear that he should catch cold.她给那个婴儿盖上了毯子以免他着凉。因此,根据题意和语法规则,选项B为最佳答案。
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