1. piece of music the most beautifully
2. nor her sister studied arts at school
3. listening to music at home to going to the concert
4. three-week vacation
5. us from enjoying the trip
XI
1. isn't much
2. is popular with
3. isn't keen on
4. took part
5. feel like watching
XII
1. They are looking forward to meeting old friends again now
2. My brother has plenty of homework to do so he can only play games for a short time
3. Trung is very interested in history and he has lot of history books at home
4. It is easy to start a diet but much harder to keep it.
5. Traffic jam is one of the most common problems in big cities in my country
6. We prefer seeing shows of our favorite singers to hearing their albums
7. What kinds of TV program does her daughter like best?
8. Children spend only a small part of their free time playing electronic games
9. Yesterday a friend of mine taught me how to play basketball
10. Some people are used to riding on crowded streets and don't mind at all