单选题 Without our teacher's help, we ______ so much.
  • A. didn't achieve
  • B. will not achieve
  • C. don't achieve
  • D. would not have achieved


【正确答案】 D
【答案解析】[分析] 本句是含蓄条件句。介词短语without our teacher's help引出虚拟条件，因此句中表示对过去发生事情的假设，用would have done。