句话用什么时态正确啊/when you see this message,I have left whent you saw this message ,I have let请问,从句的时态该怎么用啊?用 see,还是saw ,那个是对的.

分类: 作业答案 • 2022-02-18 15:01:40

问题描述：

句话用什么时态正确啊/
when you see this message,I have left
whent you saw this message ,I have let
请问,从句的时态该怎么用啊?用 see,还是saw ,那个是对的.

答

两句都不对。
第一句应该是：When you see this message, I will have left.用的是将来完成式。
第二句应该式：When you saw this message, I had left.用的式过去完成式。

答

应该用过去完成事态.
都不对

答

when you see this message,I would/will/may have left
或者
when you saw this message,I had left

答

第一个

句话 用什么时态正确啊/when you see this message,I have left whent you saw this message ,I have let请问,从句的时态该怎么用啊?用 see,还是saw ,那个是对的.