This happened about five years ago. I _____ with a friend, Diana, in the country.

They ____________ an old country house a few miles from Cambridge

and she ______________me down to see it.

Anyway, it was a dark, winter afternoon and we _____________ in the sitting room.

Sarah's mum ____________________ a little while earlier, so we were alone in the house.

Then, to our surprise we ____________ someone walking around in the room above.

But Sarah said, 'Oh I expect Mum _________________it - she always does.'

So we took no notice and ___________________ talking.

Imagine our surprise when five minutes later we looked out the window and _________Sarah's mum in her car driving up to the house!

So who...or what...______________ around upstairs?