Ответ:
- Mum and Dad have lived in London since I was a baby.
- He’s been at the bus stop for half an hour.
- She has cooked the egg for three minutes.
- Our team hasn’t won since last summer.
- I’ve written in my diary for a week.
- We haven’t seen our cousins since 2007.
Правило: since употребляется с начальным моментом времени, а for — с продолжительностью.
