国产欧美白嫩精品,精品思思久久99热网,亚洲国产成在线网站91,国产欧美一区二区三区户外

  • <strike id="uqc0k"></strike>
    <ul id="uqc0k"></ul>
  • <delect id="uqc0k"><s id="uqc0k"></s></delect><ul id="uqc0k"><acronym id="uqc0k"></acronym></ul>
    <center id="uqc0k"><source id="uqc0k"></source></center>
  • <strike id="uqc0k"><noscript id="uqc0k"></noscript></strike>
    <center id="uqc0k"></center>

    has started是什么時態(tài)

    回答
    愛揚教育

    2022-03-11

    • 相關(guān)推薦
    had started 過去完成概況起來就是“過去的過去”,在過去某動作前發(fā)生的就用過去完成 i ate an apple. and i had eaten 2 cakes before that.

    擴展資料

      而現(xiàn)在完成可以理解成用過去的動作說明現(xiàn)在的狀態(tài)。一定要記住,現(xiàn)在完成時是現(xiàn)在的時態(tài)! i have seen the film.看過片子,表示現(xiàn)在內(nèi)容。

      總體說,高中時期,過去完成時用法很局限。一定要先有第一個過去的時間,在他之前的動作才用過去完成.當然虛擬語氣里會借用had done的形式。但是與過去完成時態(tài)沒有關(guān)系。

      例句:

      Export growth has started to flatten out.

      出口增長已逐漸緩了下來。

      You will not be admitted to the theatre after the performance has started.

      演出開始后不許進入劇場。

      The government has started building fortifications along its eastern border.

      政府已經(jīng)開展了沿東部邊境建造防御工事的工程。

      She is now divorced and, in her usual resourceful way, has started her own business.

      她現(xiàn)在離婚了,并以她一貫機敏能干的作風開始自己創(chuàng)業(yè)。