17. We last saw Tom when he went to London.
We haven’t
The last
18. I’ve never met such a famous singer before.
It’s
19. It’s two years since I was last in Rome.
I
20. My father started to write five years ago. Now he is still writing.
My father
21. Linda has been cooking for five hours.
Linda
22. The Browns haven’t visited Paris since 1998.
The last time
