有这一句话：Lily is the same age as Mary.为什么是”is"而不是"has"

有这一句话：Lily is the same age as Mary.为什么是”is而不是has Lily is clever.Lily is cleverer.【合并成一句话】 The pretty girl is Lily. 提问Lily Lucy did quite well in the exam,.A.So is Lily B.So did LilyC.So Lily is.D.So Lily did.这中间有什么语法知识吗？ The girl who is carring a camara is Lily.同义句转换The girl is Lily.中间有3个空 The girl in a hat is Lily. Lily is sweeping the floor(改为现在完成时) H is Lily going to the bookstore? How is Lily going to the bookstore? Lily is the student in red翻译 Lily is the same age as Lucy.(改为同义句）Lily's age is the ( ) ( ) ( ) Lily is the best of the three girls.同义句:Lily is better than_______________ 下面这一句话怎么解释?Lily in Lass.Dearest, Who is the girl in the library?________具体原因哦A.This is Lily B.It's Lily C.He's Lily D.She's Lily The girl (in a red sweater) is LiLy.括号提问_____ _____ is LiLy? The desk is Lucy and Lily's.{Lucy and Lily's画线} —— is this? The girl is Lily.S is form America Where is Lily?she is under the tree.是什么意思