The coal minersin the coal mine for 10 hours before we came to their rescue.A.had trapped B.had been

题目简介

The coal minersin the coal mine for 10 hours before we came to their rescue.A.had trapped B.had been

题目详情

The coal miners    in the coal mine for 10 hours before we came to their rescue.
A.had trapped B.had been trapping
C.had been trappedD.would have been trapped
题型:单选题难度:偏易来源:不详

答案

C
考查时态。根据before we came to their rescue用一般过去时,故煤矿工人被困为过去的过去,故用过去完成时,选C。

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