Present Perfect vs Past Simple

I've been to Europe once. It ____________ in 1995.

There ______________ an accident in the town centre and the road is closed to traffic.

_________________ lunch yet? We're going to the canteen if you'd like to join us.

I _______________ to Australia when I was a student.

We _______________ twenty years ago.

Where ______________ this morning? I tried to call you but your phone was off.

'__________________ to Australia?'

'No, never.'

I _____________ running twice this week.

'How long ______________ in London?'

'For two years. From 2000 - 2002.'

I _____________ here since I left school.

Oh no! I ____________ my phone. Have you seen it anywhere?

I ______________ a cake. It's in the kitchen if you'd like a piece.