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in the past three years是用过去完成时还是现在完成时?

分类: 作业答案 • 2021-12-19 11:46:16

问题描述：

答

要结合语境,看动作的发生是对过去造成影响还是对现在造成影响,如果是前者就用过去完成时,后者的话就用现在完成时

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in the past three years是用过去完成时还是现在完成时?

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