Вставить been или gone.Помогите пожалуйста.

Bob`s not here.He`s____to work.
The office is empty .Everbody has____ home.
It`s good to see you again.Where have you____?
My brother`s _____ to America four times.
Sorry,you can`t speak to Ann.She`s ______ to a party.
Mary`s hair looks nice.She`s just _____ to the hairdresser`s.
Peter`s _____ ta Canada and he`s staying there for three weeks.