had juest done..when ,were/was doing..when,be about to do ..when 啥意思啊
人气：418 ℃ 时间：2020-03-28 12:33:50
解答
had just done表示刚做完.紧接着就发生了.were/was doing.when当.的时候在做.be about to do when当.的时候准备要做.
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