Question

这题应该选哪个，为什么？

Answer 1

B
此题考查虚拟语气的倒装。
虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should或had 移到从句句首，实行倒装。
Were they here now, they could help us.
　=If they were here now, they could help us.
Had you come earlier, you would have met him
　=If you had come earlier, you would have met him.　
Should it rain, the crops would be saved.
　=Were it to rain, the crops would be saved

Answer 2

选B
原句是：If it had not been for their help,we wouldn't have succeeded.

If it had可以改为had的倒装句，意思是一样的。

如果不是他们的帮忙，我们也不可能成功。

【数学之美】很高兴为你解答，不懂请追问！满意请采纳，谢谢！O(∩_∩)O~

Answer 3

选B

这里是条件状元从句
相当于 if it had been for their help

把if去掉的话

这里的助动词had要提前
就变成了
had it not been

不懂继续问哦

Answer 4

Had it not been for their help,we wouldn't have succeeded,选B
原句是：If it had not been for their help,we wouldn't have succeeded.
在这里，将if it had改成了倒装句。

如果不是他们的帮忙，我们也不可能成功。

Answer 5

b if条件句的虚拟语气的倒装句，句中有were had should 省去if，把were had should 提前

Answer 6

B 虚拟语气。要不是他们的帮助，我们不会成功
原形 If it hadn't been for........省略if had 提前