·改为含宾语从句的复合句When did he go?Do you know?I do not know.Where is he from?

问题描述:

·改为含宾语从句的复合句
When did he go?Do you know?
I do not know.Where is he from?

Do you konw where he went?
I don't know where he is from.

Do you know when he went?
I don't know where he is from.