◎ 题干
— Where _____ the recorder? I can't see it anywhere. 
— I _____ it right here. But now it's gone!

A. did you put; have put
B. have you put; put
C. had you put; was putting
D. were you putting; have put
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Where _____ the recorder? I can't see it anywhere.— I _____ it right here. But now it's gone! [ ]A. did you put; have put B. have you put; put C. had …”主要考查了你对  【一般过去时】【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。