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问题详情

His father was ______ in thought and did not hear the door open.( )

A、lose

B、lost

C、cost

D、last

时间：2021-07-17 20:15 关键词：建筑学专升本大学英语3 给排水科学与工程东北林业大学交通运输外语3 期末考试

答案解析

B

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