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    【题目】 _ your help, we’d never have been able to get out of trouble.

    A. Had it not been

    B. If it was not

    C. If we had not been

    D. If there has not been

    【答案】A

    【解析】句意：如果没有你的帮助，我们不可能摆脱困境。由后面主句的would never have been可知是对过去情况的虚拟，从句应用过去完成时，当if从句位于句首时if可省略，且从句用部分倒装结构，故选A。

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