1. At
2.On
3.At
4.On,at.
5.On
6.On
7.On
8.On
9.On.
10.In.
1. Russia
2. like
3. prefer
4. compose
5. fame
6. performs
7. musics
1. He used to live alone.
2. l did not use to like him, but now l do.
3. l never used to watch TV.
4. Did you use to live in London?
5. He is used to staying away from home.