—B-O-O-K.

A: Good morning.

B: Morning, Ms. Miller. 1 can't find my pencil box.

A: OK. We have five schoolbags here at the Lost and Found.

B: It's black.

A:

B: No, this schoolbag is green. Mine is black.

A: OK.

B: Yes, it's mine. Thank you, Ms. Miller.

A:

    Hello, my name is Kate. I'm in a middle school. This is my schoolbag. It's black. What is in it? There are (有) two books. Are these books mine? No, they aren't. They are my teacher's. What are those? Those are two pens. One is red, and the other (另一个) is blue. The red pen is mine. The blue pen is Lily's. There are some keys and a map in my schoolbag, too. They are not mine. The keys are my mom's. Whose (谁的) map is it? Oh, I can see a name on (在……上) it, M-I K-E. It's Mike's. Mike is my good friend. I can call him. His phone number is 456-9898.