Мне ) 1.peter went home at once. 2.the postman knocked at the door. треба утворити питальну и заперечну форму)!

1.Peter went home at once.
Did Peter go home at once? или  How did Peter go home? 
Peter didn't go home at once. 

2.The postman knocked at the door. 
Did the postman knock at the door? или Who did knock at the door? 
The postman didn't knock at the door.

1. Did Peter go home at once?
Peter didn't go home at once.

2. Did the postman knock at the door?
The postman didn't knock at the door.