Решение:
- 25 My sister has been to Spain twice.
- 26 Mike and Garry have gone to London for the day.
- 27 I have never been to America before.
- 28 Mum has gone shopping. She'll be back this afternoon.
- 29 Mr Smith is tired. He has been to the airport and back twice this morning.
Ответ: been; gone; been; gone; been.