2. 外语
  3. ______ for your help, we’ d never have been able to get over the difficulties.

______ for your help, we’ d never have been able to get over the difficulties.

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问题 ______ for your help, we’ d never have been able to get over the difficulties.
选项 A、Had it not
B、If it were not
C、Had it not been
D、If we had not been
答案C
解析 题型：语法题。根据句子结构，我们可以看出逗号后面是使用了虚拟语气的主句，因此，须填入表示与过去情况相反的虚拟条件句，“if it were not for...”这一结构表示同现在事实相反的假设，意为“如果不是……”。因此，B．If it were not错误。“if it had not been for...”的倒装形式为“had it not been for...”，表示与过去事实相反的假设，意为“如果当时没有……”，主句谓语形式是“would+have done”。因此，C．Had it not been正确，A Had it not错误(如果后跟been，就是正确了)D．If we had not been无此结构。
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