1、where did :Where did this accident happen is not clearly known.
2、what did :What did you say is very useful to finish this task.
3、did she :(这个貌似没法造主从吧)
4、how was :How was the weather is a common topic among people.
1、where did :Where did this accident happen is not clearly known.
2、what did :What did you say is very useful to finish this task.
3、did she :(这个貌似没法造主从吧)
4、how was :How was the weather is a common topic among people.