1. She has already bought tickets for the concert.
2. Mark has been playing football all morning.
3. The rescue team have been looking for the missing climber for a week.( Если проходите British Englis, то после слова team ставим have, если American - has)
4. Chris has been exercising for a week and feels terrific.
5. I'm sorry I'm late. Have you been waiting long?
ответ:1. has already bought
2. has been playing
3. has been looking
4. has exercised
5. How long have you been waiting?
Объяснение: В 1 і 4 є наслідок, тому present perfect simple, а в 2, 3 та 5 вказується на тривалість, тому cont.