这一题目有点疑问请帮看下从属时态问题

分类: 作业答案 • 2021-12-28 17:45:24

问题描述：

这一题目有点疑问请帮看下从属时态问题
原句子
Do you know who he is?
可否更改
a.Do you know who he was?
b.Did you know who he is?
c.Did you know who he was?
以上合乎逻辑否有错误请帮指正出

答

c.Did you know who he was?
问你当时是不是知道他是谁.回答：
1.I knew who he was.
2.I didn't know who he was.