—Is that your father?
—No. It’s my uncle, my mother’s _____.

—Is that your father?—No. It’s my uncle, my mother’s _____.

A. son   B. sister   C. brother   D. Daughter

—Is that your father?

—No. It’s my uncle, my mother’s _____.

A．son              B．sister             C．brother           D．daughter

_______your brother??

A. That’s               B. That is      C. Is that              D. Is that’s