因?yàn)楹竺嬗玫囊彩莌ad finished(過(guò)去完成時(shí))啊?
改成had是完全可以的,表示先做玩這個(gè)動(dòng)作.
你前面when的句子不完整,差動(dòng)詞啊!when后面是個(gè)空格。。。也就是when had you 和when did you 都可以咯？Yes.
When you your homewok? I had finished it before he came back
When you your homewok? I had finished it before he came back
A have finishedC did finish為什么A不行?如果把have改成had A可以嗎?
A have finishedC did finish為什么A不行?如果把have改成had A可以嗎?
英語(yǔ)人氣：956 ℃時(shí)間：2019-12-19 14:51:58
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