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. “____________ you___________

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. “____________ you _____________ (buy) a dictionary?” “Yes, I __________.” “Where __________ you _____________ (buy) it?” “ I ___________ (buy) it in a bookstore.” “When ___________ you _____________ (buy) it?” “ Yesterday.”
如何区分一般过去时和现在完成时
解题思路: 首先根据所给信息理解句子的汉语意思,然后根据句意和关键词解答
解题过程:
Have , bought , have (强调过去发生的动作对现在的影响或结果,用现在完成时态)
did , buy , bought(强调过去发生的动作,用一般过去时态)
did , buy (根据答语yesterday)