1.I do not know when he retired. Probably, when it was '62.
2.I do not know what they are planning for the summer. Perhaps they will be traveling.
3.He asked me what hotel I'm going to stop.
4.She told us that the weather has not changed.
5.She got married and changed her last name, so we can find it.
6."I find out whether the street where I used to play a kid? - I thought. - She was then a narrow and dirty." When I saw her again, I could hardly recognize her.
Now it has become a beautiful and wide street.
7.On the way to Astrahan, the tourists have visited many cities. The guide told them they have a lot of interesting things.
8.The doctor said that the boy must lie down (go) to the hospital.
9.He did not know how much time he will spend in the hospital.
10.You were at the agricultural exhibition, is not it? What other shows have you been lately?