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    精英家教网 > 高中英语 > 题目详情
    Staff are allowed to take a ten-minute break every two hours to relax, use the bathroom or do ___________ else is necessary.  
    A．somethingB．anythingC．whateverD．what
    C
    如果把is necessary 去掉，倒是可以用something。但是很显然这是名词性从句中的宾语从句，只有C、D是关系词，选择C，做任何有必要做的事情。
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