alive的形容词形式

　　Assuming he's still alive, how old would he be now?

　　假定他还活着，现在有多大年纪了？

　　I was glad to hear you're alive and well.

　　听说你健在我很高兴。

　　She's alive ─ her heart is still beating.

　　她没死——她的心脏还在跳动。