观察年代尺计算西汉从建立到灭亡存在了（  ） 年？

名著阅读。

A．I came to school with her this morning.

B．Then it must be Eliza's.

C．I didn't see her this morning.

D．Then whose is it?

E．It could belong to Sandy.

F．Its owner can't be a boy.

G．It can't be hers.

A：Excuse me，Mary.Is this your coat?

B：No，it isn't. Mine is white.

A：____ 

B：It might be Sandy's.She likes pink.

A：____ She wore a dress this morning.

B：How do you know that?

A：____ 

B：I see.Let's see what's in the pocket of the coat.Wow，here's a hair band.____ 

A：It might belong to Eliza.Eliza has long hair and pink is her favorite color.

B：Oh，there're some candies in the other pocket.

A：____ She likes eating candy very much.

B：Yes，you're right.Let's go to see her.