应该全部用过去时态
而下列车来了发生在她到达之后 所以可以用过去完成时和过去式的混搭
更好的说法：by the time the bus came she had already arrived at the station.
She has arried at the station before the next bus comes.
She has arried at the station before the next bus comes.
英语人气：297 ℃时间：2020-03-25 16:09:55
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