用括号内所给词的适当形式填空。
These are her ______________ (brother).
______________ (she) ruler is under the chair.
_____________(my) am a girl. My English name is Gina.
_____________(this) are my grandparents.
Bob and I ______________(be) friends.
This is my book, not __________(you).
These are two ___________(watch).
This is ____________(they) room.
They are not our balls. They are these ____________ (boy).
How _________ (be) your father?