This pencil is long but that __________ is short．

A．one’sB．oneC．ones

--Is this  _______ pencil case?  --No, it’s ______ eraser．

A．a; /                 B．an; a            C．a; an            D．an; /

句式变换。

1.This is a black pen.(对划线部分提问)

_______ ________ this?

2.My jacket is black and white. (对划线部分提问)

_______ _________ is _______ jacket?

3.It’s an orange ruler.(改为同义句)

The ruler _______ ________.

4.This is my pencil.(一般疑问句，并作否定回答)

______ this _________ pencil?

No, ______ ________.

5.These are my books. (一般疑问句，并作肯定回答)

______ these ___________ books?

Yes, ______ _________.

This pencil is___ than that one.

A. as long??? ? B. longest?? C. long????? D. longer