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 If        unsolved, the problem of food safety may lead to more serious results.

A. having left      B. to leave      C. left      D. leaving

 

【答案】

C

【解析】

试题分析:句意:如果食品安全问题被任由不解决,就会导致更严重的后果。这是一个状语从句的省略句,完整的句子是:If the problem of food safety is left unsolved,当主从句的主语一致的时候,可以省略从句的主语和be动词,选C。

考点:考查状语从句的省略句

 

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