Réponse :
1. People listened to jazz, a new type of music OU People listened to a new type of music, jazz
2. Young people listen to rap
3. People listened to music on record players
4. Americans listen to music on their phones
5. Jazz started in African-American communities
6. All types of people listen to jazz
7. In the USA Prohibition, alcohol was illegal
8. Prohibition is over, alcohol is legal
9. Americans went to hidden bars called speakeasies
10. People go to bars
11. Movies were is black and white
12. Movies are in color
13. Movies had no sound
14. Movies have sound
15. People drove the Model T Ford
16. People drive different types of cars
17. Americans had different styles of dancing
18. Americans don't really dance
19. People used new appliances such as toasters and vacuum cleaners
20. Americans use all types of appliances such as dish washers and dryers
