both代词both用于be动词之后You 《＿》 young!A are both B both are答案给的A.B

当both在句中作主语的同位语时,也可与动词连用,both在句中的位置有以下三种情况：
(1)放在是动词be之后.如：
①The children are both lovely.这两个孩子都很可爱.
②They are both from Australia.他们两个都是澳大利亚人.
【注意】在感叹句或简略答语中,both应置于be之前.如：
③How beautiful they both are!他们俩多漂亮啊!
④----Are you both from Japan?----Yes,we both are.
“你们俩都是日本人吗?”“是的,我们是.”
(2)放在行为动词前.如：
①We both like watching TV.我们俩都喜欢看电视.
②The men both looked French.那两个人看起来都像是法国人.
(3)当谓语动词是由几部分组成时,both要放在第一个助动词后面.
如：
①We have both studied acting.我们俩都学过演戏.
②The rooms have both been cleaned.这两间屋子都已打扫过了.