1.I think Jenny can choose her own hairstyle →_
I think Jenny should be allowed to choose her own hairstyle __________________________________________
2.I don's agree that you can get the ears pierced →__
I don's agree that you should be allowed to get the ears pierced _________________________________________
3.We don't think teenagers can smoke →
__We don't think teenagers should be allowed to smoke.
_________________________________________
4.They don't agree the train can run across the center of the city →
They don't agree the train should be allowed to run across the center of the city