open,opened;close,closed;区别?

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open,opened;close,closed;区别?
暂时初中水平．

open,opened 都是开(v．)意思
open用于一般现在式（有单三）或情态助动词后
opened 是open的过去式和过去分词形式用与完成和过去式
close,closed 都是关(v.)意思
closed是close的过去式和过去分词形式用与完成和过去式
ed是后缀用与动词后,加了这个后缀的动词从中文来说意思不变,只不过翻译成英文后就改变了时态

open,opened;close,closed;区别? closed,close； open,opened的区别 open,opened,close与closed的区别和用法谁知道open opened close closed的区别吗 open opened closed close 的区别和用法 is open,opened,opens,close,closed的区别第四题咋选?close和closed,open和opened有啥区别? 英语单词的区分be open和 be opened的区别close和 be closed的区别how often,how open closed close closes is open的区别和用法 be open,be closed,open,close 它们的区别 opened,open,close, The door is_____,it's not______.A.closed open B.opened close