______their help, we wouldn’t have succeeded.A、Hadn’t been forB、Had it not been

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问题 ______their help, we wouldn’t have succeeded.

选项 A、Hadn’t been for
B、Had it not been for
C、It hadn’t been for
D、Hadn’t it been for

答案 B

解析 虚拟语气。这是以had为助动词,表示虚拟语气的条件状语从句句型,省略if,句子倒装,而not不提前。
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