1. Have you sent the boy to the post-office?
Where have you spent the boy?
Who spent the boy to the post-office?
2.Is Baby crying now?
Why Is baby crying?
Who Is crying now?
3. Does he usually jumps on the horse?
Where does he usually jumps?
Who usually jumps on the horse?
4.Will our team win the race tomorrow?
When will our team win the race?
What our team will win tomorrow?
5. Did the child choose the biggest piece of cake yesterday?
What piese child choose yesterday?
What did the child choose yesterday?
Как-то так:)