- I / not start / my homework
I haven't started my homework yet.
- she / not play her new guitar
She hasn't played her new guitar yet.
- you / visit / London
Have you visited London yet?
- he / not climb any big mountains
He hasn't climbed any big mountains yet.
Ответ: смотри выше
Прекрасно! Твои знания английского языка впечатляют! Не останавливайся на достигнутом!