Question

【题目】—What's up?

—I missed the train. By the time I got to the train station， the train for 10 minutes.

A. had left B. has left

C. has been away D. had been away

Answer 1

【答案】D

【解析】试题分析：句意：--怎么啦？--我错过了火车。在我到达火车站前，火车已经离开了十分钟了。A.had left 过去完成时态；B.has left现在完成时态；C.has been away现在完成时；D.had been away过去完成时。by the time ,在……之前，是过去完成时的标志词，表示过去的过去的时间。和一段时间连用，动作应该是延续性的，leave对应的延续性状态是be away, 故选D。