1 . Sally’s ruler is under the model plane. (改为否定句)
Sally’s ruler ________ ________ the model plane.

2 . Is this his green schoolbag?（否定回答）
No, ________ ________.

3 . The pencil box is hers.（改为否定句）       
The pencil box ________ hers.

4 . Tom is going to study computer science. (改为否定句)
Tom ________ ________ to study computer science.

5 . —Is there a television in your classroom?
—No, there ________ (be). But there is a television in the library.

6 . Mike’s schoolbag is on his quilt. (改为否定句)
Mike’s schoolbag ________ ________ his quilt.

7 . —Is my book on the sofa?
—________. It’s on the bed.

A．No, it isn’t

B．Yes, it’s

C．Yes, it is

D．No, they aren’t

8 . —Is this his ruler? (作否定回答)
—No, ________ ________.

9 . He is supposed to bring a present.（完成反意疑问句）
He is supposed to bring a present, ________ ________?

10 . A: Is this a ruler?
B: ________________