1.I think sixteen-year-olds should be allowed to smoke.(改为否定句）
I don't think sixteen-year-olds___be allowed to smoke.
2.John needs to cut his hair because his hair is too long.(变同义句）
John needs to___his hair___because of his______
3.Teenagers shouldn't be allowed to drive.(变同义句）
Teenagers shouldn't be allowed to___ ___
只添出单词就好了啊，谢谢，在线等
