【请教英语问题：Having sent the letter,i went back.开头为什么不能用have?

分类: 作业答案 • 2022-01-09 18:00:57

问题描述：

【请教英语问题：Having sent the letter,i went back.开头为什么不能用have?
Having sent the letter,i went back.开头为什么不能用have?请用给我解释下,谢谢

答

Having sent the letter,I went back.这是含有动词-ing作状语的句子.Having sent the letter作状语,修饰谓语动词went,表示时间,相当于after引导的时间状语.-ing形式的完成式,表示-ing的动词所表示的动作发生在谓语动...