从方框中选出合适的句子完成对话
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A: This is my family photo.
B: {#blank#}1{#/blank#}
A: Nine.
B: {#blank#}2{#/blank#}
A: He's my father.
B: What's your father?
A: {#blank#}3{#/blank#}
B: {#blank#}4{#/blank#}
A: Yes, she is. She is a teacher.
B: {#blank#}5{#/blank#}
A: They are my grandparents.