A: Hello, Lucy.____ Is this your book?

B: No, it's not mine. Where did you find it?

A: Under the bench in the gym(体育馆).

B: When did you find it?

A:____

B: Oh,____ Because Class Two had a lesson in the gym just now.

A: Let's ask the teacher of Class Two.____

B: I'm sorry I can't go with you. I must practice the piano right away.

A:____ I will go alone. See you.

B : See you.

____×____=____(元)