（   ） 50．A．it                    B．it’s           C．she’s

（A）

Jane: Excuse me, Mary．Is this your backpack?

Mary: Oh, no, it isn’t．

Jane: Is this your backpack, Sonia?

Sonia: Yes, it is．Thank you．

Jane: What’s in your backpack?

Sonia: A dictionary, a book and a pencil case．

Jane: Yes．What’s in the pencil case?

Sonia: A ruler, an eraser and a pencil．

Jane: Yes．What color is your pencil case?

Sonia: It’s blue and red．

Jane: But this pencil case is yellow．

Sonia: Yellow? It’s not my pencil case，but this is my backpack．

Dale: Hey, this is my pencil case, But this isn’t my backpack．

Jane: What a mess （混乱）!

（   ） 49．A．his                  B．her           C．she

（   ） 48．A．She                  B．Her           C．He

（   ） 47．A．name                B．number         C．card

（   ） 46．A．a                    B．an            C．the

（   ） 45．A．in                       B．at             C．on