Teenager should be allowed to go out with thei friends every nightSixteen-year-olds should be allowed to drive Sixteen-year-olds should be allowed to get their ears pierced 3条句子改为否定句,一般疑问句并作肯定和否定回答把英语上面的英语句子改写为否定句，一般疑问句并作肯定和否定回答

1.Teenagers shouldn`t be allowed to go out with thei friends every night.
Should teenagers be allowed to go out with thei friends every night?
-Yes, they should.
-No, they shouldn`t.
2.Sixteen-year-olds shouldn`t be allowed to drive.
Should sixteen-year-olds be allowed to drive?
-Yes, they should.
-No, they shouldn`t.
3.Sixteen-year-olds shouldn`t be allowed to get their ears pierced .
Should sixteen-year-olds be allowed to get their ears pierced ?
-Yes, they should.
-No, they shouldn`t.