Ответ:

1. I asked Nick where he was going.

2. I asked him how long he was going to stay there.

3. I asked him how long that would take him to get there.

4. He asked her where she usually spent her summer holidays.

5. Ann asked Mike when he had left London.

6. She asked Boris when he would be back home.

7. Boris asked them how he could get to the railway station.

8. Mary asked Tom what time he would come there the next day.

9. She asked me why I hadn't come there the day before.

10. She asked me what I would do the next day if I were not busy at my office.

11. Pete asked his friends when they were leaving St.Petersburg.

12. He asked them who they would see before they left .

13. They asked him what time the train started.

14. I asked Mike what he would do after dinner.

15. I asked my uncle how long he stayed in the Crimea.

16. Mother asked me who had bought that parcel.

17 Ada asked me where I had seen such trees.

18. I asked Becky what kind of book her friend had bought her.