2. How long is it since Monica got married?
3. She had never been to the National Gallery before.
4. Jessica waited until the children had fallen asleep before she started cooking.
5. I have not been to the theatre for months.
6. She has not called me for two months.
7. The president didn't make his statement until all the reporters had arrived.
8. It's a month since we last played chess.
9. She began packing only after Tom left.