A: What's this, Jack?

B:

A:

B: Yes, it is. Look, the desk is mine.

A: How nice it is！

B: Oh, it's my father's.

A: I can see a nice picture on the wall.

B: No, it is my sister's.

A: How nice a room.

B: .

I'm Amy. I have a new schoolbag. It's black and white. It looks like a panda. It's big. The yellow one is mine, too. It's too small for me. What's in my schoolbag? A pencil box and some books. But not all the books are mine. The storybooks are Zhang Peng's. This English book is his, too. Lucy and Lily are twin sisters. They are my cousin. The science book and the Chinese book are theirs.

—No, they are （their）.

I often on Saturdays.

I sometimes for with my dad.