句型转换。
1. That is a pencil case．(对画线部分提问)
_____ that?
2. Is this her eraser? (作否定回答)
No, _____ _____ .
3. It is a book. (改为否定句)
_____ _____ a book.
4. Helen is fine. (对画线部分提问)
_____ _____ Helen?
5. Is this a computer game? (改为陈述句)
____________________.
6. What's this in English? (用eraser 回答)
____________________.
7. I find my lost keys. (改为一般疑问句)
Do you _____ _____ lost keys?
8. This is a photo of Sam.(改为同义句)
This is _____ photo.