Réponse :
12) 1. young 2. useful 3. under 4.yellow 5. used 6. yogurt 7.umbrella 8. yawn
young, useful, yellow, used, yogurt, yawn
11) The airplanes and the cars help to make our world go around !
Smartphones, computers and {je sais pas ce que c'est} help to make our world go around.
Explications : Il n'y a rien à expliquer
