Помогите плииииз!!!Срочно!! В данных предложениях измените время глагола на Present Perfect,сделав необходимые добавления.

1. The boys have taken an Adventure Holiday this year.2. Victor has been in the Caucasus this year.3. We have discovered new places when we have traveled much.4. I think that many of the teenagers who have liked to travel have prefered hiking.5. Mr Green and his family have crossed the Atlantic Ocean.