1) I asked my uncle how long he had stayed in Moscow.
2) He wondered where I had bought that hat.
3) He asked her where she usually spent her summer holidays.
4) She asked me why I had come here the day before.
5) My sister asked me if I would take her to the theatre with me the following day.
6) The doctor asked Nick if he washed his face every morning.
7) Father asked Nick if he had done his homework.
8) The man asked if there were any more books there.