Ответ:
Jack: Hi, Jill. Where's Paul?
Jill: Oh, he 1) …has gone to… London for a few days.
Jack: Really! I 2) have been to London recently.
I came back yesterday. Have 3) you been there?
Jill: No, I haven't. Paul 4) has been there twice
before, though. Where's Sarah?
Jack: She 5) has gone to Spain for two
weeks with her parents. They 6) have gone
there to visit some friends.
Jill: When is she coming back?
Jack: They'll all be back next weekend.