1.This's my sister.         
                                
2. Are these your brother?
                               
3. She is Peter mother.
                                
4. My parents is at work.
                                
5.The woman is her uncle.
                                 

A. is          
B. isn't      
C. must   
D. aren't

1. Thank for the great photo of your family.  
     _________________________________
2. That are her boyfriend.   
    _________________________________
3.—Is she a your cousin?   
   —Yes, she's.      
    _________________________________
4. That's me friend. 
    _________________________________   
5.—Are they a brothers?   
   —No, they isn't.   
    _________________________________

A. is isn't
B. he isn't
C. he is    
D. I'm not

1.That's his cousin. (改为复数句子)
    _______________
2.This is my mother and this is my father. (改为同义句)
   These ______ my ______ .
3.She is my uncle's daughter. (改为同义句)
   She ______ my ______.
4.These are my books. (改为否定句)
   These _____  ______  my books.

A. aren't    
B. isn't    
C. is  
D. not

A. is      
B. are    
C. am    
D. isn't

1. Thanks for your _____ (invite) to go to the movies next week .
2. Zhang Ming _____  (have) to stay at home.
3. They often invite me_____ (have) dinner on weekends.

A. is    
B. are    
C. be

A. is
B. isn't
C. are