从方框中选择恰当的句子完成对话，其中有一项是多余的。（每题1分，共5分）

A: Is this a photo of your family?
B: Yes, it is.
A :  
B: Yes. She is my sister, Kate.
A: Where are you ?
B: Look at that boy!    
A:    
B: Yes, they are. I love my parents.
A:    
B: It’s my dog.