A.那是你的橡皮吗?
B.这不是我的铅笔。
C.不,它不是。
D.那是我的钢笔。
E.是的,它是。
—It's a pencil case.
—____ a rubber.
—Yes. It's ____ pencil.
A. B. C. D.
E. F. G.
A. Look! Your ruler is over there.
B. Where's my ruler?
C. No, it isn't.
D. What colour is your ruler?
Mike: .
Jack:Is this your ruler?
It's Mike's ruler.
Jack: .
Helen:It's yellow.
Mike:Here it is.Thank you.