has been done和wasdone的区别

has been done 和has been 区别是什么 has been done和wasdone的区别 can be done has been Everything that can be done has been done 中can be done has been done Though learning gymnastic has been more difficult 这里的has been 是什么用法不是只有 have been dong 和has been done吗?这里的has been 是什么? has been doing have been done区别 has been done,had been done 的区别是什么? has been done和has done的具体区别谁能告诉我这两个到底在什么地方区别, what done has been done has been done?在说说他的结构是什么时态? it has been done 谓语it has been done 这句话done作表语还是been done做谓语? Has all_can be done Awhat,done Bthat,been done Cthat,be done Dwhat,already done was changed和has changed ; have been和had been ； have done 和 has done 区别.希望举例子说明说明. has/had been gone和has had been done的区别是什么啊 我要疯了.做题总错 这句话有几个助动词The work has been done by tom .has 和 been哪个是助动词 为啥 have/has been+done 是什么时? Little has been done的翻译 no harm has been done翻译 have been done 和 to be done all that can be done has been done.