A:Look!What's this?
B:It is a photo of my English teacher's family.
A:Who is your teacher?
B:The woman in red skirt.
A:Do you like English?
B:Yes,I do.
A:Who is that man?
B:He is my teacher's brother.He is a teacher,too.
A:Does your teacher have any children?
B:Yes,she does.This boy is my teacher's son,Tim.He is only five years old.
A:Does Tim have a sister?
B:No,he doesn't.My teacher__has___only one child.
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