General.
1) Is Moscow wonderful?
2) Did Olga take a lot of pictures?
3) Did they have dinner in the hotel?
4) Are they going to the Maly Theatre in the evening?
5) Does Olga think this will be a lot of fun?
Special.
1) How much time did they spent in Tretyakov Gallery?
2) Who collected Russian paintings and later gave them to Moscow as a present?
3) When did this happen?
4) Where are they going in the evening?
5) What did they visit the day before?