一道填空题Last week,he________on it for a long time until it look

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一道填空题Last week,he________on it for a long time until it looked like new.(work)
Last week,he________on it for a long time until it looked like new.(work)

Last week,he has been working on it for a long time until it looked like new.(work)
因为是过去一段时间一直在做一件事,所以用完成进行时最恰当,表示过去一个时间段一直在做一件事情且和现在有关系,就是上周他一直在做这个做了很长时间,直到它看起来像新的一样

一道填空题Last week,he________on it for a long time until it look Last week,he________on it for a long time until it looked li 英语翻译I waited a long time for a long time,until it was this s it is impolite to look at others for a long time.(用英文解释） it thought about it for a long time It's raining for a long time? Has it beensnowing for a long time? it's a long time since i last saw you It's a long time since i saw you last. ----It's a long time ( ) I saw you last. ---It’s a long time ______ I last saw you. it's a long time since we met last