英语经典习题:句型转换

问题描述:

英语经典习题:句型转换
My friend saw the dentist four days ago.
否定句:
一般疑问句:____________________________________
对my friend进行提问:____________________________________
对the dentist进行提问:____________________________________
对four days ago进行提问:____________________________________

My friend didn't see the dentist four days ago
Did your friend see the dentist four days ago
Who saw the dentist four days ago?
Who did your friend see four days ago?
When did your friend see the dentist?