精品偷拍一区二区三区,亚洲精品永久 码,亚洲综合日韩精品欧美国产,亚洲国产日韩a在线亚洲

  • <center id="usuqs"></center>
  • 
    
  • had been doing

    had been doing
    who had been work in...for a long time
    who had been working in.for a long time
    我支持下面的,請問下面的對嗎?
    英語人氣:234 ℃時間:2020-02-02 21:17:35
    優(yōu)質(zhì)解答
    下面的對,強調(diào)過去特定時間之前發(fā)生的事情存在了一段時間或一直繼續(xù)著,可用過去完成進行時,如 We had been waiting for three hours when we were allowed to enter.到我們被準許進去時,我們已經(jīng)等了三個小時了
    我來回答
    類似推薦
    請使用1024x768 IE6.0或更高版本瀏覽器瀏覽本站點,以保證最佳閱讀效果。本頁提供作業(yè)小助手,一起搜作業(yè)以及作業(yè)好幫手最新版!
    版權所有 CopyRight © 2012-2024 作業(yè)小助手 All Rights Reserved. 手機版