练习册

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  • 试题
    ---I called you yesterday evening, but there was no answer. ---Oh, I am sorry I dinner at my friend’s home. A. have B. had C. was having D. have had [解析]答案:C.该提考查的是动词的时态.表示过去某一时刻正在进行的动作应用过去进行时. 【查看更多】

     

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