being done / be being done / have been doing / having been done 有没有谁可以帮我好好分析一下它们的用法还有各自代表的意思,还有它们的区别.麻烦请写出例句,举例说明.谢谢.

分类: 作业答案 • 2021-12-19 16:19:32

问题描述：

being done / be being done / have been doing / having been done 有没有谁可以帮我好好分析一下
它们的用法还有各自代表的意思,还有它们的区别.麻烦请写出例句,举例说明.谢谢.

答