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— What caused the fire?

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— What caused the fire? — The accident report suggests that no check ________ on the tank condition for years. A. should be done B. would be done C. was done D. had been done
动词时态语态
解题思路: 理解句子语境和含义;掌握一般过去时态;掌握被动语态用法。
解题过程:
你好,答疑如下
C 考点:一般过去时与语态。for years指过去的一段时间,与现在又间隔,用过去时。且do与check是被动关系。
最终答案:C