If ____ unsolved, the problem of food safety may lead to more serious results.A．
题型：不详难度：来源：
If ____ unsolved, the problem of food safety may lead to more serious results.| A．making | B．remained | C．left | D．taking |
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答案
| C |
解析
| 考查省略句。the problem与leave构成被动关系，使用过去分词。完整的结构应该是If the problem is left unsolved, the problem of food safety may lead to more serious results.句意：如果这个问题被留在没有被解决，它会导致更严重的后果。 |
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