( )in the mine for 3 days ,the miners were rescued successfully at lastA,Trapped B,Trapping C,Having trapped D,Having been trapped .

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( )in the mine for 3 days ,the miners were rescued successfully at last
A,Trapped B,Trapping
C,Having trapped D,Having been trapped .

选D.第一,要名词,A排除.
分析句子时态,后半句是过去时,所以前半句不可能是B.
选D是因为这是被动态.被关在矿井里三天.(可参考后半句 were rescued)