单选题
______for your help, I'd never have been able to achieve such a success.
A、
If I had not been
B、
Had it not been
C、
If it were not
D、
Had it not
【正确答案】
B
【答案解析】
解析：根据句意和时态，前半句应为“If it had not been for your help”。当虚拟条件句的谓语动词含有were，had，should时，可以省略if，将were，had，should移至主语的前面。
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