peter has just arrived ,and i didn't know he was coming until last night为什么用was coming ,用had come 不行吗

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peterhasjustarrived,andididn''tknowhewascominguntillastnight为什么用wascoming,用hadcome不行吗peterhasjustarri

peter has just arrived ,and i didn't know he was coming until last night为什么用was coming ,用had come 不行吗
peter has just arrived ,and i didn't know he was coming until last night
为什么用was coming ,用had come 不行吗

peter has just arrived ,and i didn't know he was coming until last night为什么用was coming ,用had come 不行吗
不行,后面有last (这是过去式),用was coming是过去进行时,表过去正在发生的事情