隋文帝的改革:英语:请举出一些运用现在完成时和过去完成时的被动句。
来源:百度文库 编辑:高考问答 时间:2024/06/01 13:35:55
The door has been opened yesterday.
The door had been opened befor he was back.
What can be done has been done.
John had been in China for over a month till he went back to his own country a week ago.