Upon arriving home,I was surprised to find the paper I had had ___ was missing.
Upon arriving home,I was surprised to find the paper I had had ___ was missing.
为什么选prepared的形式啊
为什么选prepared的形式啊
英语人气：958 ℃时间：2020-01-26 02:56:10
优质解答
had had是过去完成时 had+动词过去分词,表示完成时态所以用prepared
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