2. How long is it been since you got married?
3. She has never attended the National Gallery before.
4. Jessica didn't start cooking until the children fell asleep before she started cooking.
5. I haven't been to the theatre for months.
6. She hasn't called me for 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 didn't begin packing until after Tom had left.
Hope this helps! :)
