Upon arriving home,I was surprised to find the papers I had had ______ was missing.A.to collect B.collected C.it collected D.to be collected请详细说出理由.thanks!
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Upon arriving home,I was surprised to find the papers I had had ______ was missing.A.to collect B.collected C.it collected D.to be collected请详细说出理由.thanks!
Upon arriving home,I was surprised to find the papers I had had ______ was missing.
A.to collect B.collected C.it collected D.to be collected
请详细说出理由.thanks!
Upon arriving home,I was surprised to find the papers I had had ______ was missing.A.to collect B.collected C.it collected D.to be collected请详细说出理由.thanks!
I had had ______ 是定语从句, 前面省去了个that
即: (that) I had had 【collected】
that 这个关系代词代先行词the papers, 作had had(have这个使役动词的过去完成时)的宾语:
可见: 此句型为:
have sth done
collected 是过去分词做宾补, 表被动
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