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It's great that all the visitors whohad been trappedhad been trapped(trap) on the island were saved.
【考点】过去完成时;过去完成时的被动语态.
【答案】had been trapped
【解答】
【点评】
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发布:2024/5/23 20:38:36组卷:6引用:1难度:0.5

