1. This is a watch. (变为复数形式)
   __________ are some __________.
2. Can Cindy sing this song in Chinese?(作肯定回答)
   __________, __________ can.
3. This sweater is $28. (对划线部分提问)
    _________ __________ is this sweater?
4. He does his homework in the evening. (改为否定句)
    He __________ __________ his homework in the evening.
5. Tile biology class isn't boring. (改为同一句)
    The biology class __________ __________.

1. This is my friend. （变为复数句）    
________________________  
2. Is that your baseball? （变为复数句）   
________________________  
3. These computer are new. （变为单数句）    
________________________  
4. Are those dictionaries here? （变为单数句）    
________________________  
5. It’s my backpack. （变为复数句）    
________________________  
6. These are his grandparents.（变为一般疑问句）    
________________________  
7. Those are photos. （就画线部分提问）    
________________________  
8. Are these school things? （作否定回答）    
________________________  
9. The woman teacher is at school. （变为复数句）    
________________________  
10. This is a girl student.（变为复数句）    
________________________

1. Look, this is a____(watch).
2. Where are your____  (book)?
3. -What are these?
    -They're    (dictionary).
4.I have three____(eraser).
5. Two _________   (girl)are not here today.