had been at the bus stop for 20 minutes when a bus finally came.是用了什么时态 翻译一下句子 been在这里是什么意思
人气：177 ℃ 时间：2019-08-21 03:38:42
解答
过去完成时,当公交车最后到达时,已经在汽车站20分钟了been在这是什么意思 I had been at the bus stop for 20 minutes when a bus finally came.打少一个字母了相当于be，been waitting
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