the door is closed为什么要加ed

the door was closed the door is closed有什么区别,都是在表示状态吧? Make the door be closed 和 Make th door is closed. 哪个对? 为什么? the door is closed为什么要加ed the door is closing和the door is closed有什么区别?如题,谢谢啦~ The door is alwaws closed改同义句 The door is closed____ ____ ______.三个空 下面两句英语分别是什么意思?The door has been closed.The door is closed.具体语法分析? Now the door is open,but sometimes it is _____ (closed). the door is open,but the windows are ...后填close还是closed?请说下依据, He closed the door ____ (quiet) the door was closed by me 关门是close the door还是 closed the door who closed the door?nobody,_____________ A it closed itself B it is closed by itself帮我解释多一些 God is always fair,he closed the door you will open a window for you! Oh,the door is not open.I forget_______it.填to close,closing,close或closed The d_____ is closed -Who closed the door?-Nobody.It______.A.was closed by itselfB.had closed itselfC.was closed itselfD.closed itself我觉得是A,不是被动语态吗?可是答案为什么是D呢..谁能解释下, The door was closed by me 和The door was closed 的区别 The door of the shop is ____(close/closed) now.It will ____(open/opened) tomorrow.为什么第一个填closed 第二个填open.