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做英语单选时怎样确定用过去时还是现在完成时或者过去完成时

答案:1  悬赏:20  手机版
解决时间 2021-04-21 22:41
  • 提问者网友:感性作祟
  • 2021-04-21 09:21
做英语单选时怎样确定用过去时还是现在完成时或者过去完成时
最佳答案
  • 五星知识达人网友:英雄的欲望
  • 2021-04-21 11:00

发生在过去某个动作或某个时间之前的动作或状态,用过去完成时;


Before he returned to his own country, Jack had been in Germany for twenty years.


如果单纯发生在过去的动作或状态,就用过去时;


Yesterday he completed his project eventually.


而强调动作对现在造成的影响或结果时,就要用现在完成时。


His father has been dead for nearly ten years.


He has made a list of what he wants to buy always.

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