一起答
单选

_____ for your help,we’d never have been able to finish the work.

  • A.Hadn’t it been
  • B.Had it not been
  • C.It was not
  • D.If it had been not
试题出自试卷《全国自考综合英语(一)模拟试题及答案8》
参考答案
查看试卷详情