2. 外语
  3. According to the draft resolution, market entities and government departments must not do anything unless______by the law.

According to the draft resolution, market entities and government departments must not do anything unless______by the law.

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问题 According to the draft resolution, market entities and government departments must not do anything unless______by the law.
选项 A、was mandated
B、was mandating
C、mandated
D、mandating
答案C
解析 状语从句的省略题。在表示时间、条件、让步、方式等的状语从句中，如果从句谓语含有be动词，且从句主语和主句的主语一致，或其主语是it，此时可将从句的主语和be动词一起省略。本句中，unless引导的条件状语从句的主语是anything，该主语与逻辑谓语mandate是动宾关系，而从句主语anything可以用it来代替。因此，unless引导的条件状语从句的完整形式是unless it was mandated by the law。根据上面的语法规则，本句中的it和be动词可以一起省略，即只需用mandated即可，因此C为答案。
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