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During the last 3 years,the students ______ more than 2000 E

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During the last 3 years,the students ______ more than 2000 English words.
A.Have learned B.learned C.are learning D.will learn
您好!如何选择?理由.
A
根据‘ During the last 3 years ' 可知用现在完成时
再问: 那么,in the last 3 years 和 for the last 3 years 的用法和 during the last 3 years 一样吗?方便的话,请举例。谢谢!
再答: 基本上一样,都是与现在完成时连用。