嗯嗯.就是16中英语时态的被动语态的结构!还有含义.

问题描述:

嗯嗯.就是16中英语时态的被动语态的结构!还有含义.

一般现在 am/is/are done现在进行 am/is/are being done一般将来 will be done一般过去 was/were done现在完成 have/has been done过去进行 was/were being done过去将来 would be done过去完成 had been done常用的...